Ambient 424B3 Prospectus supplement

File Pursuant to Rule 424(b)(3)

Registration No. 333-159645

PROSPECTUS

AMBIENT CORPORATION

279,650 shares of Common Stock

This Prospectus relates to the resale by the selling stockholders of up to 279,650 shares of our common stock, par value $0.001 (the "Common Stock") issuable upon exercise of currently exercisable warrants.

We will not receive any of the proceeds from the sale of the shares by the selling stockholders.

The selling stockholders may sell the shares from time to time at the prevailing market price or in negotiated transactions. Each of the selling stockholders may be deemed to be an "underwriter," as such term is defined in the Securities Act of 1933, as amended (the "Act").

As of August 3, 2011, our Common Stock is quoted on the NASDAQ Capital Market under the trading symbol “AMBT”. Prior to such time, our Common Stock was quoted on the OTC Bulletin Board under the trading symbol "ABTG". The last reported sales price per share of our Common Stock as quoted by the NASDAQ Capital Market on March 23, 2012 was $4.59.

AS YOU REVIEW THIS PROSPECTUS, YOU SHOULD CAREFULLY CONSIDER THE MATTERS DESCRIBED IN THE SECTION OF THIS PROSPECTUS TITLED "RISK FACTORS" BEGINNING ON PAGE 8.

NEITHER THE SECURITIES EXCHANGE AND COMMISSION (THE "SEC") NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED ON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this Prospectus is March 29, 2012

PRINCIPAL EXECUTIVE OFFICE:

Ambient Corporation

7 Wells Avenue

Newton, Massachusetts 02459

(617) 332-0004

AMBIENT CORPORATION

TABLE OF CONTENT

PROSPECTUS SUMMARY			3
RISK FACTORS			4
USE OF PROCEEDS			21
AGREEMENTS WITH THE SELLING STOCKHOLDERS			21
DIVIDEND POLICY			22
MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS			22
SELECTED FINANCIAL DATA
MANAGEMENT DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATION			23
DESCRIPTION OF OUR BUSINESS			32
DESCRIPTION OF PROPERTY			45
LEGAL PROCEEDINGS			45
MANAGEMENT			45
EXECUTIVE COMPENSATION			51
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS			59
STOCK OWNERSHIP OF MANAGEMENT AND CERTAIN BENEFICIAL HOLDERS			61
SELLING STOCKHOLDERS			63
PLAN OF DISTRIBUTION			64
DESCRIPTION OF CAPITAL STOCK			65
DISCLOSURE OF SEC POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES			67
LEGAL MATTERS			67
EXPERTS			67
WHERE YOU CAN FIND MORE INFORMATION			67
INDEX TO FINANCIAL STATEMENTS			F-2

We have not authorized anyone to provide you with information different from that contained or incorporated by reference in this Prospectus. The selling stockholders are offering to sell, and seeking offers to buy, shares of our Common Stock only in jurisdictions where offers and sales are permitted. The information contained in this Prospectus is accurate only as of the date of this Prospectus, regardless of the time of delivery of this Prospectus or of any sale of Common Stock.

PROSPECTUS SUMMARY

THIS IS ONLY A SUMMARY AND DOES NOT CONTAIN ALL OF THE INFORMATION THAT MAY BE IMPORTANT TO YOU. YOU SHOULD READ THE ENTIRE PROSPECTUS, ESPECIALLY THE SECTION TITLED "RISK FACTORS" AND OUR FINANCIAL STATEMENTS AND THE RELATED NOTES INCLUDED IN THIS PROSPECTUS, BEFORE DECIDING TO INVEST IN SHARES OF OUR COMMON STOCK.

We are a leading provider of a smart grid communications platform designed to enable utilities to effectively deploy, integrate and communicate with multiple devices creating smart grid applications within the electric power grid. Our smart grid communications platform significantly improves the ability of utilities to use advanced technologies to upgrade their electric power grids, effectively making the grids more intelligent.

The term “smart grid” refers to the use of advanced technologies to upgrade the electric power grid, or the grid, effectively making the grid more intelligent and efficient. The grid was largely designed and built decades ago to reliably distribute electricity from generators to customers in a manner resulting in sizable capital investments and operating costs. A number of factors are increasingly straining the grid, including growing electricity demand, two-way power flow, the implementation of renewable and distributed energy sources and advanced pricing plans. As such, the aging grid is prone to reliability, security, availability and power quality issues, costing utilities and consumers billions of dollars each year. Technology is now revolutionizing the grid and transforming it into an efficient, communicating energy service platform. We believe that the smart grid will address the current shortcomings of the grid and deliver significant benefits to utilities and consumers of energy, including reduced costs, increased power reliability and quality, accommodation of renewable energy technologies, consumer empowerment over energy consumption and a platform for continued integration of new technologies.

The Ambient Smart Grid® communications platform, which includes hardware, software and firmware, enables utilities to effectively manage smart grid applications. Our communications platform provides utilities with a secure, two-way, flexible and open Internet protocol, or IP, architecture that efficiently networks smart grid applications and different technologies within each application and supports multiple communications technologies currently used by utilities, such as Wi-Fi, radio frequency, cellular technologies, power line communications, serial and Ethernet. Today, our communications platform enables the simultaneous integration and parallel communication of multiple smart grid applications provided by a variety of vendors, including smart metering, demand response and distribution automation. We believe that the Ambient Smart Grid® communications platform delivers significant benefits to utilities, including support of a single network; an open, scalable and interoperable platform; preservation of utility investments; third-party application hosting; remote and distributed intelligence; secure communications; and reduced overall implementation and operating costs.

The Ambient Smart Grid® products and services include communications nodes; a network management system, AmbientNMS®; integrated applications; and maintenance and consulting services. The communications nodes, our principal product, are physical boxes that contain the hardware and software needed for communications and data collection in support of smart grid assets. We have configured our communications nodes to act as individual data processors and collectors that receive signals from other networked devices, enabling smart grid applications. Duke Energy, our sole customer, to date has deployed approximately 75,000 of our communications nodes that receive data from smart electric and gas meters, using a variety of communications technologies, and process and transmit these data to the utility back office over a cellular carrier network for further processing. Furthermore, our communications nodes, in the fourth generation of development, also accommodate integrated applications that include our own developed technology and third-party technology, thereby substantially increasing their functionality. By enabling such system interoperability, our communications platform both reduces implementation and ongoing communications costs and improves overall power management efficiencies. We believe that, to date, no other single solution or technology has provided the necessary flexibility in a cost-effective manner, enabling a comprehensive digital communications platform while leveraging standards-based technologies. We developed our communications platform to fill this void.

Our long-standing relationship with Duke Energy, which we believe has one of the most forward-looking smart grid initiatives in North America, has led to rapid growth in our business. We entered into a long-term agreement in September 2009 with Duke Energy to supply the utility with our Ambient Smart Grid® communications platform and license our AmbientNMS® through 2015. We increased revenue from $2.2 million in 2009 to $20.4 million in 2010 to $62.3 million in 2011. We believe that there are opportunities for additional sales of our products and services with Duke Energy. Furthermore, we also intend to leverage our success with the utility to secure additional customers in the global utility market place.

On July 18, 2011, we effected a reverse stock split of our outstanding shares of common stock at a ratio of 1-for-100 shares. Following the implementation of the reverse split, the number of shares of common stock that we are authorized to issue from time to time was updated to 100,000,000 shares.

Since inception, we have primarily funded our operations with proceeds from the sale of our securities and, most recently, with revenue from sales of our products.

CORPORATE INFORMATION

Our principal offices are located 7 Wells Avenue, Newton, Massachusetts 02459, and our telephone number is (617) 332-0004. We maintain a website at www.ambientcorp.com. Information contained on our website is not part of this Prospectus.

RISK FACTORS

Investing in shares of our Common Stock involves significant risk. You should consider the information under the caption "RISK FACTORS" beginning on page 8 of this Prospectus in deciding whether to purchase the Common Stock offered under this Prospectus.

THE OFFERING

Securities offered by the selling stockholders		279,650 shares of Common Stock. (1)
Shares outstanding before the Offering		16,587,384 (2)
Use of Proceeds		We will not receive any proceeds from the sale of the Common Stock by the selling stockholders

____________

(1)	Refers to shares issuable upon exercise of warrants issued to Kuhns Brothers (“Kuhns”), an investment firm and a registered broker dealer, or its designees, in connection with certain financings that we consummated between July 2007 and November 2008 and is comprised of the following: to (i) 7,500 shares of Common Stock issuable upon exercise of warrants issued in January 2007 in connection with the retainer of Kuhns as investment advisor to us and (ii) 272,150 shares of Common Stock issuable upon exercise of warrants issued as compensation for placement agent services rendered in connection with the above referenced financings. For a description of the agreement between us and the holders of the Warrants and the Other Warrants, see "DESCRIPTION OF THE AGREEMENTS WITH SELLING STOCKHOLDERS".

(2)	As of March 23, 2012. Does not include (i) up to an aggregate of 2,763,540 shares of Common Stock issuable upon exercise of options granted under our 2000 Equity Incentive Stock Option Plan and our 2002 Non-Employee Director Stock Option Plan, (ii) any of the shares described in footnote (1) above and (iii) 663,834 additional shares of Common Stock issuable upon exercise of other outstanding warrants.

SUMMARY FINANCIAL DATA

The following financial data should be read together with our financial statements and related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” appearing elsewhere in this Prospectus.

We have derived the following statement of operations data and cash flow data for the years ended December 31, 2009, 2010 and 2011 and balance sheet data as of December 31, 2010 and 2011 from our audited financial statements included elsewhere in this Prospectus. We have derived the following statement of operations data and cash flow data for the years ended December 31, 2007 and 2008 and balance sheet data as of December 31, 2007, 2008 and 2009 from our audited financial statements which are not included in this Prospectus. Share and per share information has been adjusted to reflect the 1-for-100 reverse stock split of our common stock that became effective on July 18, 2011. Our historical results are not necessarily indicative of our results to be expected in any future period.

	For the Years Ending December 31,
	2007			2008			2009			2010			2011
STATEMENT OF OPERATIONS DATA:

Total revenue	$	2,265		$	12,622		$	2,193		$	20,358		$	62,306
Cost of revenue		1,806			9,942			1,836			12,023			35,490
Gross profit		459			2,680			357			8,335			26,816

Operating expenses:
Research and development expenses		3,675			4,351			4,946			6,314			12,223
Selling, general and administrative expenses		4,012			3,600			4,662			5,239			9,638
Total operating expenses		7,687			7,951			9,608			11,553			21,861

Operating (loss) income		(7,228	)		(5,271	)		(9,251	)		(3,218	)		4,955

Interest (expense) income, net		(1,102	)		(3,116	)		(4,963	)		(214	)		19
Amortization of beneficial conversion feature of convertible debt		(2,657	)		-			-			-			-
Amortization of deferred financing costs		(4,943	)		-			-			-			-
Loss on extinguishment of debt		-			(2,789	)		-			-			-
Other income (expense), net		174			(118	)		(32	)		246			-
Total other (loss) income		(8,528	)		(6,023	)		(4,995	)		32			19

Provision for income taxes		-			-			-			-			204

Net (loss) income	$	(15,756	)	$	(11,294	)	$	(14,246	)	$	(3,186	)	$	4,770

Net (loss) income per share (basic)	$	(6.55	)	$	(3.75	)	$	(1.81	)	$	(0.21	)	$	0.29
Net (loss) income per share (diluted)	$	(6.55	)	$	(3.75	)	$	(1.81	)	$	(0.21	)	$	0.28

Weighted average shares used in computing basic net (loss) income per share		2,405			3,016			7,891			15,385			16,515
Weighted average shares used in computing diluted net (loss) income per share		2,405			3,016			7,891			15,385			16,905

CASH FLOW DATA:
Cash flows (used in) provided by operating activities		(6,697	)		(5,549	)		(7,720	)		(1,592	)		12,069
Cash flows provided by (used in) investing activities		50			(576	)		(269	)		(527	)		(962	)
Cash flows provided by (used in) financing activities		4,807			13,591			964			8,119			(129	)

	As of December 31,
		2007			2008			2009			2010		2011
BALANCE SHEET DATA:						��
Cash, cash equivalents and marketable securities	$	546		$	8,137		$	987		$	6,987	$	17,965
Total assets		2,816			10,622			3,393			10,573		21,874
Working capital, net (1)		(253	)		7,688			(225	)		5,577		15,327
Convertible debt (current & long-term portion)		2,672			755			9,816			-		-
Total stockholders' (deficit) equity		(1,465	)		7,454			(9,535	)		6,136		16,866

______

(1) Excluding current portion of convertible debt

RISK FACTORS

INVESTING IN OUR COMMON STOCK INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD CAREFULLY CONSIDER THE RISKS AND UNCERTAINTIES DESCRIBED BELOW BEFORE YOU PURCHASE ANY OF OUR COMMON STOCK. IF ANY OF THESE RISKS OR UNCERTAINTIES ACTUALLY OCCURS, OUR BUSINESS, FINANCIAL CONDITION OR RESULTS OF OPERATIONS COULD BE MATERIALLY ADVERSELY AFFECTED, AND YOU COULD LOSE ALL OR PART OF YOUR INVESTMENT.

RISKS RELATED TO OUR BUSINESS

We currently depend on one customer for substantially all of our revenue, and any material delay, reduction or cancellation of orders from this customer would significantly reduce our revenue and have a material negative impact on our business.

Duke Energy accounted for all of our revenue for each of our last three fiscal years. Any material delay, reduction or cancellation of orders from Duke Energy would have a material adverse effect on our business, including significantly reduced revenue, unabsorbed overhead and incurred net losses.

Although we have a long-term contract that stipulates the general terms of our relationship, Duke Energy does not provide us with firm purchase commitments for the duration of the contract. Instead, Duke Energy provides us with 12-month rolling order forecasts and periodic purchase orders. Duke Energy can delay, reduce or cancel purchase orders at any time prior to the anticipated lead time for delivery of the products (typically three months), subject to Duke Energy’s payment of a cancellation fee not to exceed the price of the products cancelled. Duke Energy may also delay, reduce or cancel its purchase orders without penalty if we are unable to deliver the products ordered thereunder within a specified time from the scheduled delivery date.

Our immediate business opportunities continue to be primarily dependent on the success of our deployments with Duke Energy and the future decisions of Duke Energy relating to its smart grid deployment in its service territories. Our goal is to increase our business with Duke Energy and to attract new customers. We may not achieve this goal within an acceptable period of time or at all. The failure to increase our business with Duke Energy or to attract new customers would have a material adverse effect on our business and prospects.

In January 2011, Duke Energy and Progress Energy announced a proposed merger that is subject to stockholder and regulatory approval. Since the merger of Duke Energy and Progress Energy is complex and each company has its own smart grid related investment plans, we are unable to assess the effects, if any, that the proposed merger, or delays in the proposed merger, will have on our business. The proposed merger has taken longer to consummate than originally planned. We cannot assure you that the post-merger entity will continue or expand its business with us.

We have a limited history of profitability on an annual basis, and we may be unable to achieve or maintain profitability in future periods.

Fiscal year 2011 was our first full year of profitability. We may not, however, be able to maintain profitability in future fiscal years. At December 31, 2011, we had an accumulated deficit of $138.7 million. To grow our revenue and customer base, we also plan to increase spending associated with research and development and business development, thereby increasing our operating expenses. These increased costs may cause us to incur net losses in the foreseeable future, and we may be unable to grow our revenue and expand our customer base to maintain profitability on an annual basis.

We depend on factors affecting the utility industry.

We expect to continue to derive substantially all of our revenue from sales of products to utilities. Purchases of our products may be deferred as a result of many factors, including economic downturns, slowdowns in new residential and commercial construction, access to capital at acceptable terms, utility specific financial circumstances, mergers and acquisitions, regulatory decisions, weather conditions and interest rates. We may experience variability in operating results on an annual and a quarterly basis as a result of these factors.

Utility industry sales cycles can be lengthy and unpredictable, which can negatively impact our ability to expand the deployment of our products with Duke Energy and to secure new customers.

Sales cycles for smart grid projects are generally long and unpredictable due to budgeting, procurement and regulatory approval processes that can take up to several years to complete. Utility customers typically issue requests for quotes and proposals, establish evaluation committees, review different technical options, require pilot programs prior to commercial deployments, analyze cost and benefit metrics, consider regulatory factors and follow their normal budget approval processes. In addition, many electric utilities tend to be risk averse and tend to follow industry trends rather than be the first to purchase new products or services. These tendencies can extend the lead time for, or prevent acceptance of, new products or services, including those for smart grid initiatives despite the support of the federal government through grants and other incentives.

Accordingly, potential customers may take longer to reach a decision to initiate smart grid programs or to purchase our products or services. It is not unusual for a utility customer to go through the entire sales process and not accept any proposal or quote. This extended sales process requires the dedication of significant time by our personnel to develop relationships at various levels and within various departments of utilities and our use of significant financial resources, with no certainty of success or recovery of our related expenses. Long and unpredictable sales cycles with utility customers could have a material adverse effect on our business, operating results or our financial condition.

The market for our products and services, and smart grid technology generally, is still developing and we will have difficulty expanding our business and securing new customers if the market develops less extensively or more slowly than we expect.

The market for our products and services, and smart grid technology generally, is still developing, and it is uncertain whether our products and services will achieve and sustain high levels of demand and market acceptance. Our success will depend to a substantial extent on the willingness and ability of utilities to implement smart grid technology. Many utilities lack the financial resources and/or technical expertise required to evaluate, deploy and operate smart grid technology. Regulatory agencies, including public utility commissions, govern utilities’ activities, and they may not create a regulatory environment that is conducive to the implementation of smart grid technologies in a particular jurisdiction. Furthermore, some utilities may be reluctant or unwilling to adopt smart grid technology because they may be unable to develop a business case to justify the up-front and ongoing expenditures. If utilities do not widely adopt smart grid technologies or do so more slowly than we expect, we will have difficulty expanding our business and securing new customers, which will adversely affect our business and operating results.

Because the markets for our products are highly competitive, we may lose sales to our competitors, which would harm our revenue and operating results.

Competition in the smart grid market is intense and involves rapidly changing technologies, evolving industry standards, frequent new product introductions, changes in customer or regulatory requirements and localized market requirements. Competitive pressures require us to keep pace with the evolving needs of utilities; to continue to develop and introduce new products, features and services in a timely, efficient and cost-effective manner; and to stay abreast of regulatory factors affecting the utility industry.

We compete with a wide array of manufacturers, vendors, strategic alliances, systems developers and other businesses, including other smart grid communications technology companies, ranging from relatively smaller companies focusing mainly on communications technology to large Internet and software-based companies. In addition, some providers of smart meters may add communications capabilities to their existing business in the future, which could decrease our base of potential customers and could decrease our revenue and profitability. “Early adopters,” or customers that have sought out new technologies and services, have largely comprised the target market for our products. Because the number of early adopters is limited, we will need to expand our target markets by marketing and selling our products to mainstream customers to continue our growth.

Some of our present and potential future competitors have, or may have, greater name recognition, experience and customer bases as well as substantially greater financial, technical, sales, marketing, manufacturing and other resources than we possess and that afforded them competitive advantages. These potential competitors may undertake more extensive marketing campaigns, adopt more aggressive pricing policies, obtain more favorable pricing from suppliers and manufacturers and exert more influence on sales channels than we do. Competitors may sell products at lower prices in order to obtain market share. Competitors may be able to respond more quickly than we can to new or emerging technologies and changes in customer requirements. Competitors may also be able to devote greater resources to the development, promotion and sale of their products and services than we can. Competitors may introduce products and services that are more cost-efficient, provide superior performance or achieve greater market acceptance than our products and services. Our competitors may make strategic acquisitions or establish cooperative relationships among themselves or with third parties that enhance their ability to address the needs of our prospective customers. It is possible that new competitors or alliances among current and new competitors may emerge and rapidly gain significant market share. Other companies may also drive technological innovation and develop products that are equal or superior in quality and performance to our products and render our products non-competitive or obsolete.

Any of these competitive factors could make it more difficult for us to attract and retain customers, cause us to lower our prices in order to compete and reduce our market share and revenue, any of which could have a material adverse effect on our operating results and financial condition. If we fail to compete successfully with current or future competitors, we could experience material adverse effects on our business, financial condition, results of operations and cash flows.

If we are unable to keep pace with technological innovations and are unable to continue to develop new products and product enhancements, we may be unable to expand our business with Duke Energy or secure new customers.

We operate in a new and evolving market. Technological advances, the introduction of new products, evolving industry standards, changing industry preferences and changes in utility industry regulatory requirements could adversely affect our business unless we are able to adapt to the changing conditions. Technological advances or changing industry preferences could render our products less desirable or obsolete, and we may not be able to respond effectively to the requirements of evolving market conditions. As a result, we may need to commit significant financial and other resources to the following:

	●	engaging additional engineering and other technical personnel;
	●	continuing research and development activities on existing and potential products;
	●	maintaining and enhancing our technological capabilities;
	●	pursuing innovative development of new products and technologies;
	●	designing and developing new products and product enhancements that appeal to customers;
	●	meeting the expectations of our customers in terms of product design, cost, performance and service;
	●	responding to changing industry preferences;
	●	maintaining efficient, timely and cost-effective manufacturing resources of our products; and
	●	achieving customer acceptance of our products and technologies.

Our future success depends on our ability to address the changing market needs by developing and introducing new products and product updates that compare favorably on the basis of timely introduction, cost and performance with the products of competitive suppliers and evolving technologies. We must also extend and keep pace with technological developments and emerging industry standards that address the needs of customers. We intend to commit substantial resources to developing new products, product enhancements and technological advances for the smart grid market. The smart grid market is relatively new, and industry standards for this market are evolving and changing. If the smart grid market does not develop as anticipated, or if demand for our products in this market does not materialize or occurs more slowly than we expect, we will have expended substantial resources and capital without realizing sufficient revenue, which will adversely affect our business and operating results.

Existing and future regulations concerning the electric utility industry may present technical, regulatory and economic barriers that may significantly impact future demand for our products.

International, federal, state and local government regulations and policies, as well as internal policies and regulations promulgated by electric utilities, heavily influence the market for the electric utility industry. These regulations and policies often relate to investment initiatives, including decisions relating to investment in smart grid technologies, as well as building codes, public safety regulations and licensing requirements. In addition, certain of our contracts with our potential utility customers may be subject to approval by federal, state or local regulatory agencies, which may not be obtained or be issued on a timely basis. In the United States and in a number of other countries, these regulations and policies are being modified and may continue to be modified and have a substantial impact on the market for our and other smart grid related technologies. If such regulations or policies do not continue to gain acceptance for smart grid initiatives or the adoption of such initiatives takes substantially longer than expected, our prospects for developing new customers could be significantly limited.

Duke Energy and some potential utility customers have applied for government grants and may also seek to participate in other government incentive programs, and if those grants or other incentives are not received or are significantly delayed, our results of operations could suffer.

Many utilities, including Duke Energy and some of our potential utility customers, have applied for grants and may seek to participate in other government incentive programs designed to stimulate the U.S. economy and support environmental initiatives, including smart grid technologies. In certain cases, such as with the American Reinvestment and Recovery Act of 2009, or ARRA, the U.S. government has approved the funds, and the government and the utilities have entered into agreements under which the government has agreed to award funds to the utilities, but significant portions of the funds have not yet been distributed. Furthermore, such funds must be spent by the end of 2013 or awards will not be further funded, which could reduce the demand for smart gird related products beyond 2013. Duke Energy has applied for and been granted funding under ARRA programs, which may account for a significant portion of our current and anticipated future revenue and billings. Duke Energy and our potential utility customers that seek these government grants or incentives may delay or condition the purchase of our products and services upon receipt of such funds or upon their confidence in the future disbursement and tax treatment of those funds. If Duke Energy and our potential utility customers do not receive these funds or if their receipt of funds is significantly delayed, our operating results could suffer. Similarly, the receipt of government funds or incentives may be conditioned upon utilities meeting milestones and other requirements, some of which may not be known until a future point in time. If our products and services do not meet the requirements necessary for receipt of government funds or other incentives, Duke Energy and our potential utility customers may delay or condition the purchase of our products and services until they meet these requirements, and our results of operations could suffer. Furthermore, there may not be government funds or incentives for utilities in future periods. As a result, Duke Energy and our potential utility customers may not have the resources or incentives to purchase our products and services in those future periods.

The adoption of industry standards applicable to our products or services could limit our ability to compete in the marketplace.

Standards bodies, which are formal and informal associations that seek to establish voluntary, non-governmental product and technology standards, are influential in the United States and abroad. We participate in voluntary standards organizations in order to both help promote non-proprietary, open standards for interoperability with our products and to prevent the adoption of exclusionary standards. However, we are not able to control the content of adopted voluntary standards and do not have the resources to participate in all voluntary standards processes that may affect our markets. The adoption, or expected adoption, of voluntary standards that are incompatible with our products or technology or that favor our competitors’ products or technology could limit the market opportunity for our products and services or render them obsolete, any of which could materially and adversely affect our revenue, results of operations and financial condition.

If we become subject to product returns and product liability claims resulting from defects in our products, we may fail to achieve market acceptance of our products, and our business could be harmed.

We develop complex products for use in an evolving marketplace and generally warrant our products for a period of 12 months from the date of sale. Despite testing by us and customers, our products may contain or may be alleged to contain undetected errors or failures. In addition, a customer or its installation partners may improperly install or implement our products. The integration of our products in smart grid networks or applications may entail the risk of product liability or warranty claims based on disruption to these networks or applications. Any such manufacturing errors or product defects could result in a delay in recognition or loss of revenue, loss of market share or failure to achieve market acceptance. Additionally, these defects could result in financial or other damages to a customer; cause us to incur significant warranty, support and repair costs; and divert the attention of our engineering personnel from our product development efforts. A product liability claim brought against us, even if unsuccessful, would likely be time-consuming and costly to defend. The occurrence of these problems would likely harm our business.

We currently maintain property, general commercial liability, errors and omissions and other lines of insurance. Such insurance may be insufficient in amount to cover any particular claim, or we might not carry insurance that covers a specific claim. In addition, such insurance may not be available in the future or the cost of such insurance may increase substantially.

Our ability to provide bid bonds, performance bonds or letters of credit may be limited and could negatively affect our ability to bid on or enter into significant long-term agreements.

We may be required to provide bid bonds or performance bonds to secure our performance under customer contracts or, in some cases, as a prerequisite to submit a bid on a potential project. Our ability to obtain such bonds will depend upon our capitalization, working capital, past performance, management expertise and reputation, and external factors beyond our control, including the overall capacity of the surety market. Surety companies consider those factors in relation to the amount of our tangible net worth and other underwriting standards that may change from time to time. Surety companies may require that we collateralize a percentage of the bond with our cash or other form of credit enhancement. Events that affect surety markets generally may result in bonding becoming more difficult to obtain in the future, or being available only at a significantly greater cost. In addition, utilities may require collateral guarantees in the form of letters of credit to secure performance or to fund possible damages as the result of an event of default under any contracts with them. If we enter into significant long-term agreements that require the issuance of letters of credit, our liquidity could be negatively impacted. Our inability to obtain adequate bonding or letters of credit and, as a result, to bid or enter into significant long-term agreements, could have a material adverse effect on our ability to effectively compete and could impact our future business.

We currently rely on a single contract manufacturer to produce our products, and a loss of our sole contract manufacturer or its inability to satisfy our quality and other requirements could severely disrupt the production and supply of our products.

We utilize one contract manufacturer for all of our production requirements. This manufacturing is conducted in China by a U.S.-based company that also performs services for numerous other companies. We depend on our manufacturer to maintain high levels of productivity and satisfactory delivery schedules. Our reliance on our manufacturer reduces our control over the manufacturing process, exposing us to risks, including reduced control over quality assurance, product costs and product supply. Any financial, operational or other difficulties involving our manufacturer could adversely affect us. We provide our manufacturer with up to 12-month rolling forecasts of our production requirements. We do not, however, have long-term agreements with our manufacturer that guarantees production capacity, prices, lead times or delivery schedules. Since our manufacturer serves other customers, a number of which have greater production requirements than we do, our manufacturer could determine to prioritize production capacity for other customers or reduce or eliminate production for us on short notice. We could also encounter lower manufacturing productivity and longer delivery schedules in commencing volume production of new products. Any of these problems could result in our inability to deliver our products in a timely manner and adversely affect our operating results. The loss of our relationship with our manufacturer or its inability to conduct its manufacturing services for us as anticipated in terms of cost, quality and timeliness could adversely affect our ability to fill customer orders in accordance with required delivery, quality and performance requirements. If this were to occur, the resulting decline in revenue would harm our business.

If any one of these risks materializes, it could significantly impact our operations and our ability to fulfill our obligations under purchase orders with Duke Energy as well as future orders from Duke Energy or other customers. Qualifying new manufacturers is time consuming and might result in unforeseen manufacturing and operational problems. If we had to transition to an alternative contract manufacturer we could experience operational delays, increased product costs and increased operating costs which could irreparably harm our relationship with Duke Energy, harm our reputation and could potentially impact our ability to secure new customers.

Shortages of components and materials may delay or reduce our sales and increase our costs, thereby harming our results of operations.

The inability of our manufacturer to obtain sufficient quantities of components and other materials necessary for the production of our products could result in reduced or delayed sales or lost orders. Any delay in or loss of sales could adversely impact our operating results. Some of the materials used in the production of our products are available from a limited number of foreign suppliers, particularly suppliers located in Asia. In most cases, neither we nor our manufacturer has long-term supply contracts with these suppliers. As a result, we are subject to increased costs, supply interruptions and difficulties in obtaining materials.

Security breaches involving our smart grid products or services, publicized breaches in smart grid products and services offered by others or the public perception of security risks or vulnerability created by the deployment of the smart grid in general, whether or not valid, could harm our business.

The security technologies we have integrated into our communications platform and products that are designed to detect unauthorized activity and prevent or minimize security breaches may not function as expected and our products and services, those of other companies with whose products our products and services are integrated or interact, or even the products of other smart grid solutions providers may be subject to significant real or perceived security breaches.

Our communications platform allows utilities to monitor, compile and analyze sensitive information related to consumers’ energy usage, as well as the performance of different parts of the electric power distribution grid. As part of our data transfer and managed services, we may store and/or come into contact with sensitive consumer information and data when we perform operational, installation or maintenance functions for a utility customer. If, in handling this information, we, our partners or a utility customer fails to comply with privacy or security laws, we could face significant legal and financial exposure to claims of government agencies, utility customers and consumers whose privacy is compromised. Even the perception that we, our partners or a utility customer has improperly handled sensitive, confidential information could have a negative effect on our business. In addition, third parties may, through computer viruses, physical or electronic break-ins and other means, attempt to breach our security measures or inappropriately use or access our AmbientNMS® or the communications nodes we have in the field. If a breach is successful, sensitive information may be improperly obtained, manipulated or corrupted, and we may face legal and financial exposure. In addition, a breach could lead to a loss of confidence in our products and services, and our business could suffer.

Our current and anticipated future products and services allow authorized personnel to remotely control equipment at residential and commercial locations, as well as at various points on the grid. For example, our software could allow a utility to remotely connect and disconnect electricity at specific customer locations. If an unauthorized third party were to breach our security measures and disrupt, gain access to, or take control of, any of our products or services, our business and reputation could be severely harmed.

Our products and services may also be integrated or interface with products and services sold by third parties, and rely on the security of those products and their secure transmission of proprietary data over the Internet and other networks. Because we do not have control over the security measures implemented by third parties in their products or in the transmission of data over the Internet and other networks, we cannot ensure the complete integrity or security of such third-party products and transmissions.

Concerns about security or customer privacy may result in the adoption of state or federal legislation that restricts the implementation of smart grid technology or requires us to make modifications to our products, which could significantly limit the deployment of our technologies or result in significant expense to modify our products.

Any real or perceived security breach could seriously harm our reputation and result in significant legal and financial exposure, inhibit market acceptance of our products and services, halt or delay the deployment by utilities of our products and services, cause us to lose sales, trigger unfavorable legislation and regulatory action and inhibit the growth of the overall market for smart grid products and services. Any of these risks could have a material adverse effect on our business, operating results and financial condition.

Developments in data protection laws and regulations may affect technology relating to smart grid products and solutions, which could adversely affect the demand for our products and services.

Our products and services may be subject to data protection laws and regulations that impose a general framework for the collection, processing and use of personal data. Our communications platform relies on the transfer of data relating to individual energy use and may be affected by these laws and regulations. It is unclear how the regulations governing the transfer of personal data in connection with privacy requirements will further develop in the United States and internationally, and to what extent this may affect technology relating to smart grid products and services. This could have a material adverse effect on our business, financial condition and results of operations.

We use some open source software in our products and services that may subject our products and services to general release or require us to re-engineer our products and services, which may cause harm to our business.

We use some open source software in connection with our products and services. From time to time, companies that incorporate open source software into their products have faced claims challenging the ownership of open source software and/or compliance with open source license terms. Therefore, we could be subject to suits by parties claiming ownership of what we believe to be open source software or noncompliance with open source licensing terms. Some open source software licenses require users who distribute open source software as part of their software to publicly disclose all or part of the source code to such software and/or make available any derivative works of the open source code on unfavorable terms or at no cost. We monitor the use of open source software in our products and services and try to ensure that none of the open source software is used in a manner that would require us to disclose the source code to the related product or that would otherwise breach the terms of an open source agreement. However, such use could inadvertently occur and we may be required to release our proprietary source code, pay damages for breach of contract, re-engineer our products, discontinue the sale of our products in the event re-engineering cannot be accomplished on a timely basis or take other remedial action that may divert resources away from our development efforts, any of which could adversely affect our business, operating results and financial condition.

Our quarterly results are inherently unpredictable and subject to substantial fluctuations, and, as a result, we may fail to meet the expectations of securities analysts and investors, which could adversely affect the trading price of our common stock.

Our revenue and other operating results may vary significantly from quarter to quarter as a result of a number of factors, many of which are outside of our control. While our revenue has increased in recent periods, there can be no assurances that our revenue will continue to increase or will not decrease on a quarterly or annual basis.

The factors that may affect the unpredictability of our quarterly results and cause our stock price to fluctuate include the following:

	●	long, and sometimes unpredictable, sales and customer deployment cycles;
	●	changes in the mix of products and services sold;
	●	our dependence on a single customer;
	●	changing market conditions;
	●	changes in the competitive environment;
	●	failures of our products or components that we use in our products that delay deployments, harm our reputation or result in high warranty costs, contractual penalties or terminations;
	●	product or project failures by third-party vendors, utility customers or competitors that result in the cancellation, slowing down or deferring of projects;
	●	liquidated damage provisions in our current or future contracts, which could result in significant penalties if triggered or, even if not triggered, could affect our ability to recognize revenue in a given period;
	●	the ability of our suppliers and manufacturers to deliver supplies and products to us on a timely basis;
	●	delays associated with government funding programs for smart grid projects;
	●	political and consumer sentiment and the related impact on the scope and timing of smart grid deployment; and
	●	economic, regulatory and political conditions in the markets where we operate or anticipate operating.

As a result, we believe that quarter to quarter comparisons of operating results are not necessarily indicative of what our future performance will be. In future quarters, our operating results may be below the expectations of securities analysts or investors, in which case the price of our common stock may decline.

Negative economic conditions in the United States and globally may have a material and adverse effect on our operating results, cash flow and financial condition.

The economies in the United States and countries around the world have been recovering from a global financial crisis and recession, which began in 2008, but financial markets and world economies continue to be volatile. Significant long-term effects will likely result from the financial crisis and recession, including slower and more volatile future global economic growth than during the years prior to the financial crisis of 2008. A lower future economic growth rate could result in reductions in sales of our products and services, slower adoption of new technologies and an increase price competition. Any of these events would likely harm our business, results of operations and financial condition.

International manufacturing and sales risks could adversely affect our operating results.

Our products are produced in China by a U.S.-based, third-party contract manufacturer. We may also expand our addressable market by pursuing opportunities to sell our products in international markets. We have had no experience operating in markets outside of the United States. Accordingly, new markets may require us to respond to new and unanticipated regulatory, marketing, sales and other challenges. We may not be successful in responding to these and other challenges that we may face as we enter and attempt to expand in international markets. International operations also entail a variety of other risks. The manufacture of our products abroad and our potential expansion into international markets expose us to various economic, political and other risks that could adversely affect our operations and operating results, including the following:

	●	potentially reduced protection for intellectual property rights;
	●	political, social or economic instability in certain parts of the world;
	●	unexpected changes in legislature or regulatory requirements of foreign countries;
	●	differing labor regulations;
	●	tariffs and duties and other trade barrier restrictions;
	●	possible employee turnover or labor unrest;
	●	the burdens and costs of compliance with a variety of foreign laws;
	●	currency exchange fluctuations;
	●	potentially adverse tax consequences; and
	●	potentially longer payment cycles and greater difficulty in accounts receivable collections.

International operations are also subject to general geopolitical risks, such as political, social and economic instability and changes in diplomatic and trade relations. One or more of these factors could adversely affect any international operations and result in lower revenue than we expect and could significantly affect our profitability.

Growth in our business may be impacted if international trade is hindered, disrupted or economically disadvantaged.

Political and economic conditions abroad may adversely affect the foreign production of our products as well as the sale of our products if we expand our business internationally. Protectionist trade legislation in either the United States or foreign countries, such as a change in the current tariff structures, export or import compliance laws or other trade policies, could adversely affect our ability to obtain product production from foreign manufacturers and to sell our products in foreign countries.

Changes in policies by the U.S. or foreign governments resulting in, among other things, higher taxation, currency conversion limitations, restrictions on the transfer of funds or the expropriation of private enterprises also could have a material adverse effect on us. Any actions by countries in which we conduct business to reverse policies that encourage foreign investment or foreign trade also could adversely affect our operating results. In addition, U.S. trade policies, such as “most favored nation” status and trade preferences for certain Asian nations, could affect the attractiveness of our services to our U.S. customers and adversely impact our operating results.

Our operating results could be adversely affected by fluctuations in the value of the U.S. dollar against foreign currencies.

We currently transact business in U.S. dollars with our U.S.-based manufacturer that produces our products in China. A weakening of the dollar could cause our overseas manufacturer to require renegotiation of either the prices or currency we pay for its services. In the future, our manufacturer and international customers, if any, could negotiate pricing and make or require payments in non-U.S. currencies.

If our overseas vendors or customers require us to transact business in non-U.S. currencies, fluctuations in foreign currency exchange rates could affect our cost of goods, operating expenses and operating margins and could result in exchange losses. In addition, currency devaluation can result in a loss to us if we hold deposits of that currency. Hedging foreign currencies can be difficult, especially if the currency is not freely traded. We cannot predict the impact of future exchange rate fluctuations on our operating results. We currently do not hedge any foreign currencies.

Our inability to protect our intellectual property could impair our competitive advantage, reduce our revenue and increase our costs.

Our success and ability to compete depend in part on our ability to maintain the proprietary aspects of our technologies and products. We rely on a combination of trade secrets, patents, copyrights, trademarks, confidentiality agreements and other contractual provisions to protect our intellectual property, but these measures may provide only limited protection. We generally enter into written confidentiality and non-disclosure agreements with our employees, consultants, customers, manufacturers and other recipients of our technologies and products and assignment of invention agreements with our employees and consultants. We may not always be able to enforce these agreements and may fail to enter into any such agreement in every instance when appropriate. We license from third parties certain technology used in and for our products. These third-party licenses are granted with restrictions; therefore, such third-party technology may not remain available to us on terms beneficial to us. Our failure to enforce and protect our intellectual property rights or obtain from third parties the right to use necessary technology could have a material adverse effect on our business, operating results and financial condition. In addition, the laws of some foreign countries do not protect proprietary rights as fully as do the laws of the United States.

Patents may not issue from the patent applications that we have filed or may file in the future. Our issued patents may be challenged, invalidated or circumvented, and claims of our patents may not be of sufficient scope or strength, or issued in the proper geographic regions, to provide meaningful protection or any commercial advantage. We have not applied for, and do not have, any copyright registration on our technologies or products. We have applied to register certain of our trademarks in the United States and other countries. We cannot assure you that we will obtain registrations of principle or other trademarks in key markets. Failure to obtain registrations could compromise our ability to protect fully our trademarks and brands and could increase the risk of challenge from third parties to our use of our trademarks and brands.

We may be required to incur substantial expenses and divert management attention and resources in defending intellectual property litigation against us.

We cannot be certain that our technologies and products do not and will not infringe issued patents or other proprietary rights of others. While we are not currently subject to any infringement claim, any future claim, with or without merit, could result in significant litigation costs and diversion of resources, including the attention of management, and could require us to enter into royalty and licensing agreements, any of which could have a material adverse effect on our business. We may not be able to obtain such licenses on commercially reasonable terms, if at all, or the terms of any offered licenses may be unacceptable to us. If forced to cease using such technology, we may be unable to develop or obtain alternate technology. Accordingly, an adverse determination in a judicial or administrative proceeding or failure to obtain necessary licenses could prevent us from manufacturing, using or selling certain of our products, which could have a material adverse effect on our business, operating results, and financial condition.

Furthermore, parties making such claims could secure a judgment awarding substantial damages, as well as injunctive or other equitable relief that could effectively block our ability to make, use or sell our products in the United States or abroad. Such a judgment could have a material adverse effect on our business, operating results and financial condition. In addition, we are obligated under certain agreements to indemnify the other party in connection with infringement by us of the proprietary rights of third parties. In the event we are required to indemnify parties under these agreements, it could have a material adverse effect on our business, financial condition and results of operations.

We may incur substantial expenses and divert management resources in prosecuting others for their unauthorized use of our intellectual property rights.

Other companies, including our competitors, may develop technologies that are similar or superior to our technologies, duplicate our technologies or design around our patents and may have or obtain patents or other proprietary rights that would prevent, limit or interfere with our ability to make, use or sell our products. Effective intellectual property protection may be unavailable or limited in some foreign countries in which we may do business, such as China. Unauthorized parties may attempt to copy or otherwise use aspects of our technologies and products that we regard as proprietary. Our means of protecting our proprietary rights in the United States or abroad may not be adequate or competitors may independently develop similar technologies. If our intellectual property protection is insufficient to protect our intellectual property rights, we could face increased competition in the market for our technologies and products.

Should any of our competitors file patent applications or obtain patents that claim inventions also claimed by us, we may choose to participate in an interference proceeding to determine the right to a patent for these inventions because our business would be harmed if we fail to enforce and protect our intellectual property rights. Even if the outcome is favorable, this proceeding could result in substantial cost to us and disrupt our business.

In the future, we also may need to file lawsuits to enforce our intellectual property rights, to protect our trade secrets or to determine the validity and scope of the proprietary rights of others. This litigation, whether successful or unsuccessful, could result in substantial costs and diversion of resources, which could have a material adverse effect on our business, financial condition and results of operations.

We depend on key personnel who would be difficult to replace, and our business will likely be harmed if we lose their services or cannot hire additional qualified personnel.

Our success depends substantially on the efforts and abilities of our senior management and key personnel. The competition for qualified management and key personnel, especially engineers, is intense. Although we maintain noncompetition and nondisclosure covenants with most of our key personnel, we do not have employment agreements with most of them. The loss of services of one or more of our key employees or the inability to hire, train and retain key personnel, especially engineers and technical support personnel, could delay the development and sale of our products, disrupt our business and interfere with our ability to execute our business plan.

Potential strategic alliances may not achieve their objectives, and the failure to do so could impede our growth.

We anticipate that we will enter into strategic alliances. Among other matters, we continually explore strategic alliances designed to enhance or complement our technology or to work in conjunction with our technology; to provide necessary know-how, components or supplies; to attract additional customers; and to develop, introduce and distribute products utilizing our technology. Any strategic alliances may not achieve their intended objectives, and parties to our strategic alliances may not perform as contemplated. The failure of these alliances may impede our ability to introduce new products and expand our business.

Any acquisitions that we undertake could be difficult to integrate, disrupt our business, dilute stockholder value and harm our operating results.

We may pursue opportunities to acquire other businesses and technologies in order to complement our products, expand the breadth of our business, enhance our technical capabilities or otherwise grow our business. While we have no current definitive agreements underway, we may acquire businesses, products or technologies in the future. If we make any future acquisitions, we could issue stock that would dilute existing stockholders’ percentage ownership, incur substantial debt, assume contingent liabilities or experience higher operating expenses. We have no experience in acquiring other businesses or technologies. Potential acquisitions also involve numerous risks, including the following:

	●	problems assimilating the purchased operations, technologies or products;
	●	unanticipated costs associated with the acquisition;
	●	diversion of management’s attention from our core businesses;
	●	adverse effects on existing business relationships with suppliers and customers;
	●	risks associated with new ventures with respect to which we have little or no prior experience; and
	●	potential loss of key employees of purchased organizations.

We cannot assure you that we would be successful in overcoming problems encountered in connection with any acquisitions, and our inability to do so could disrupt our operations and adversely affect our business.

Our compliance with the Sarbanes-Oxley Act of 2002 and SEC rules concerning internal controls may be time consuming, difficult and costly, and the failure to achieve and maintain effective internal controls in accordance with Section 404 of the Sarbanes-Oxley Act could have a material adverse effect on our ability to produce accurate financial statements and on our stock price.

Under SEC regulations adopted pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, we are required to maintain internal controls over financial reporting and to report any material weaknesses in such internal controls. In addition, we anticipate that at some point in the near future, we will be required to furnish a report by our management on our internal control over financial reporting that includes a statement that our independent auditors have issued an attestation report on management’s assessment of internal control over financial reporting. While we have spent considerable time and effort in designing, documenting and testing our internal control procedures, we may need to spend additional financial and other resources improving our processes, which may result in increased general and administrative expenses and may shift management time and attention from revenue-generating activities to compliance activities. Despite our efforts, we can provide no assurance as to our independent auditor’s conclusion with respect to the effectiveness of our internal control over financial reporting.

If we fail to comply in a timely manner with the requirements of Section 404 of the Sarbanes-Oxley Act of 2002 regarding internal control over financial reporting or to remedy any material weaknesses in our internal controls that we may identify, such failure could result in material misstatements in our financial statements, cause investors to lose confidence in our reported financial information, limit our ability to raise needed capital and have a negative effect on the trading price of our common stock.

We may not be able to secure additional financing on favorable terms, or at all, to meet our future capital needs.

In the future, we may require additional capital to respond to business opportunities, challenges, acquisitions or unforeseen circumstances and may determine to engage in equity or debt financings or enter into credit facilities for other reasons. We may not be able to secure additional debt or equity financing in a timely basis or on favorable terms, or at all. Any debt financing obtained by us in the future could involve restrictive covenants relating to our capital raising activities and other financial and operational matters, which may make it more difficult for us to obtain additional capital and to pursue business opportunities. If we raise additional funds through further issuances of equity, convertible debt securities or other securities convertible into equity, our existing stockholders could suffer significant dilution in their percentage ownership of our company, and any new equity securities we issue could have rights, preferences and privileges senior to those of holders of our common stock. If we are unable to obtain adequate financing or financing on terms satisfactory to us, when we require it, our ability to continue to grow or support our business and to respond to business challenges could be significantly limited.

Risks Related to Our Common Stock

Our principal stockholder exerts substantial influence over us.

Vicis Capital Master Fund, or Vicis, owns approximately 84% of the outstanding shares of our common stock as of December 31, 2011. Consequently, Vicis is able to exert substantial influence over our company and control matters requiring approval by our stockholders, including the election of all our directors, approving any amendments to our certificate of incorporation, increasing our authorized capital stock, effecting a merger or sale of our assets and determining the number of shares available for issuance under our stock plans. As a result of Vicis’ control, no change of control of our company can occur without Vicis’ consent.

Vicis’ voting control may discourage transactions involving a change of control of our company, including transactions in which you as a holder of our common stock might otherwise receive a premium for your shares over the then current market price. Vicis is not prohibited from selling a controlling interest in our company to a third party and may do so without stockholder approval and without providing for a purchase of any stockholder’ shares of common stock. Accordingly, shares of common stock may be worth less than they would be if Vicis did not maintain voting control over us.

We may issue additional common stock in the future, which would dilute our existing stockholders.

In the future, we may issue our previously authorized and unissued securities, including shares of our common stock or securities convertible into or exchangeable for our common stock, resulting in the dilution of the ownership interests of our stockholders. We are authorized under our amended and restated certificate of incorporation to issue 100,000,000 shares of common stock and 5,000,000 shares of preferred stock with such designations, preferences, and rights as may be determined by our Board of Directors. As of March 23, 2012, there were 16,572,384 shares of our common stock issued and outstanding and there were no shares of our preferred stock issued and outstanding.

While we filed with the Securities and Exchange Commission in August 2011 a registration statement on Form S-1 for a proposed public offering of our common stock, we currently do not have any commitments for funding. In addition, we may also issue additional shares of our common stock or securities convertible into or exchangeable for our common stock in connection with the hiring of personnel, future acquisitions, future private placements of our securities for capital raising purposes or for other business purposes. Future issuances of our common stock, or the perception that such issuances could occur, could have a material adverse effect on the price of our common stock.

The market price of our common stock may be volatile, which could result in substantial losses for investors.

The market price of our common stock is likely to be volatile and could fluctuate widely in response to various factors, many of which are beyond our control, including the following:

	●	our ability to execute our business plan;
	●	the gain or loss of significant orders;
	●	volume and timing of customer orders;
	●	actual or anticipated changes in our operating results;
	●	changes in expectations relating to our products, plans and strategic position or those of our competitors or customers;
	●	market conditions and trends within the utilities industry and the smart grid market;
	●	introductions of new products of new pricing policies by us or by our competitors;
	●	the gain or loss of significant customers;
	●	industry developments;
	●	regulatory, legislative or other developments affecting us or the utilities industry in general or the smart grid market in particular;
	●	economic and other external factors;
	●	general global economic and political instability;
	●	changes in laws or regulations affecting the utilities industry;
	●	announcements of technological innovations or new products by us or our competitors;
	●	acquisitions or strategic alliances by us or by our competitors;
	●	litigation involving us, the utilities industry or the smart grid market;
	●	recruitment or departure of key personnel;
	●	future sales of our common stock;
	●	price and volume fluctuations it the overall stock market from time to time;
	●	changes in investor perception;
	●	the level and quality of any research analyst coverage of our common stock;
	●	changes in earnings estimates or investment recommendations by securities analysts;
	●	the financial guidance we may provide to the public, any changes in such guidance or our failure to meet such guidance; and
	●	trading volume of our common stock or the sale of stock by our parent, management team or directors.

In addition, the securities markets have experienced extreme price and volume fluctuations that often have been unrelated or disproportionate to the operating performance of particular companies. Public announcements by various companies concerning, among other things, their performance, accounting practices or legal problems could cause the market price of our common stock to decline regardless of our actual operating performance.

Future sales of common stock by Vicis or others or other dilutive events may adversely affect the market price of our common stock, even if our business is doing well.

Our existing stockholders could sell any or all of the shares of common stock owned by them from time to time for any reason. Future sales of substantial amounts of our common stock in the public market, or the perception that such sales could occur, could adversely affect prevailing trading prices of our common stock and could impair our ability to raise capital through future offerings of equity or equity-related securities. We cannot predict what effect, if any, future sales of our common stock, or the availability of shares for future sales, will have on the market price of our stock. As of December 31, 2011, we had the following outstanding securities:

	●	Approximately 16.6 million shares of common stock outstanding;
	●	Approximately 2.7 million shares of common stock issuable upon the exercise of then outstanding stock options at a weighted average exercise price of $8.16 per share;
	●	Approximately 1.1 million shares of common stock issuable upon the exercise of then outstanding warrants at a weighted average exercise price of $16.61 per share; and
	●	Approximately 725,000 shares of common stock reserved for issuance under our 2000 Equity Incentive Plan and 2002 Non-Employee Directors Stock Option Plan.

We do not expect to pay any dividends for the foreseeable future; hence stockholders must look solely to appreciation of our common stock to realize a gain on their investments.

We have never declared or paid cash dividends on our common stock, and we do not anticipate doing so in the foreseeable future. We currently intend to retain future earnings, if any, to fund our operations and support our growth strategies. Any determination to pay dividends in the future will be made at the discretion of our Board of Directors and will depend on our results of operations, financial conditions, contractual restrictions, restrictions imposed by applicable law, capital requirements and other factors our Board of Directors deems relevant. Accordingly, stockholders must look solely to appreciation of our common stock to realize a gain on their investment. This appreciation may not occur.

Our ability to use U.S. net operating loss carryforwards might be limited, subjecting our corporate income to earlier taxation.

At December 31, 2011, we had available approximately $68.3 million of net operating loss carryforwards, for U.S. income tax purposes which expire in the years 2016 through 2030. However, due to changes in stock ownership resulting from historical investments provided by Vicis, we expect that the use of the U.S. net operating loss carryforwards are significantly limited under Section 382 of the Internal Revenue Code. As such, approximately $56.2 million of our net operating loss carryforwards will expire and will not be available to use against future tax liabilities. In addition, our ability to utilize the current net operating loss carryforwards might be further limited by the issuance of common stock in future offerings. To the extent our use of net operating loss carryforwards is significantly limited, our income could be subject to corporate income tax earlier than it would if we were able to use net operating loss carryforwards, which could result in lower profits.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

Certain statements included in this prospectus are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, which we refer to as the Securities Act. Such forward-looking statements are contained principally in the sections entitled “Prospectus Summary,” “Risk Factors,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Our Business.” In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “estimate,” “predict,” “project,” “potential,” “plan,” “continue,” “anticipate,” “appear” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These statements reflect our current views with respect to future events and are based on assumptions and subject to risks and uncertainties. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Forward-looking statements include, but are not limited to, statements about:

	●	our ability to retain and attract customers, particularly in light of our dependence on a single customer for substantially all of our revenue;
	●	our expectations regarding our expenses and revenue, including our expectations that our research and development expenses and selling, general and administrative expenses may increase in absolute dollars;
	●	anticipated trends and challenges in our business and the markets in which we operate, including the market for smart grid technologies;
	●	our expectations regarding competition as more and larger companies enter our markets and as existing competitors improve or expand their product offerings;
	●	our plans for future products and enhancements of existing products;
	●	our anticipated cash needs and our estimates regarding our capital requirements; and
	●	our anticipated growth strategies.

These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. We discuss many of these risks in this prospectus in greater detail under the heading “Risk Factors.”

These forward-looking statements represent our estimates and assumptions only as of the date of this prospectus. Unless required by U.S. federal securities laws, we do not intend to update any of these forward-looking statements to reflect circumstances or events that occur after the statement is made.

You should read this prospectus and the documents that we reference in this prospectus and have filed as exhibits to the registration statement, of which this prospectus is a part, completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

USE OF PROCEEDS

The selling stockholders will receive the net proceeds from sales of the shares of Common Stock included in this Prospectus. We will not receive any proceeds from the sale of Common Stock by the selling stockholders. We would, however, receive proceeds from the exercise of the Retainer Warrants and Placement Warrants (as defined below) to purchase up to 279,650 shares of Common Stock that are held by the selling stockholders, to the extent such warrants are exercised for cash. If the warrants are exercised on a cashless basis, we will not receive proceeds from those exercises.

The selling stockholders are not obligated to exercise these warrants, and there can be no assurance that they will do so. If all of these warrants were exercised for cash, we would receive proceeds of approximately $1.0 million. Any proceeds we receive from the exercise of these warrants will be used for working capital and general corporate purposes.

AGREEMENTS WITH THE SELLING STOCKHOLDERS

In January 2007, we and Kuhns Brothers (“Kuhns”), an investment firm and a registered broker dealer, entered into a placement agency agreement pursuant to which Kuhns provided to us investment banking services. In connection with the entry into the placement agency agreement, we issued to Kuhns warrants to purchase up 7,500 shares of our Common Stock (the “Retainer Warrants”) at an exercise price of $7.50 and expire in July 2012.

Thereafter, in connection with financing transactions with Vicis Master Fund that occurred between July 2007 and November 2008, we paid to Kuhns, which served as placement agent, a cash fee of $615,000 and we issued, warrants to purchase up to 450,167 shares of our Common Stock (the “Placement Warrants”) at an exercise price of $3.50 and expire at various dates through April 2013. The registration statements of which this prospectus forms a part was filed in order to register for resale the shares of Common Stock underlying the Retainer Warrants and the Placement Warrants held by Kuhns or its designees, except for warrants for 13,833 shares.

The exercise price for the Retainer Warrants and Placement Warrants are subject to adjustment if there are certain capital adjustments or similar transactions, such as a stock split or merger. Retainer Warrants and Placement Warrants for fifty percent of the shares contain provisions providing the holders thereof with the right to exercise the Warrants on a "cashless" basis after the first anniversary of issuance if the Registration Statement is not in effect at the time of exercise. If the holder elects the cashless exercise option, it will receive a lesser number of shares and we will not receive any cash proceeds from that exercise. The lesser number of shares which the holder will receive is determined by a formula that takes into account the closing bid price of our Common Stock on the trading day immediately before the Warrant exercise. That closing price is multiplied by the full number of shares for which the Warrant is then being exercised. That result is reduced by the total exercise price the holder would have paid for those shares if it had not elected a cashless exercise. The number of shares actually issued under the cashless exercise option is equal to the balance amount divided by the closing price referred to above.

The Retainer Warrants and Placement Warrants provide that the beneficial owner can exercise such warrant in accordance with their respective terms by giving notice to us. However, the holder may not exercise its Warrant to the extent that such exercise would result in such owner and its affiliates beneficially owning more than 4.99% of our stock then outstanding (after taking into account the shares of our Common Stock issuable upon such conversion or warrant exercise). If the holder then disposes of some or all of its holdings, it can again convert its debentures or exercise its warrant.

DIVIDEND POLICY

We have paid no dividends on our Common Stock and do not expect to pay cash dividends in the foreseeable future. It is the present policy of our board of directors to retain all earnings to provide funds for the growth of the Company. The declaration and payment of dividends in the future will be determined by our board of directors based upon our earnings, financial condition, capital requirements and such other factors as our board of directors may deem relevant. We are not under any contractual restriction as to present or future ability to pay dividends.

MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

Our common stock has been listed on the NASDAQ Capital Market under the symbol “AMBT” since August 3, 2011. Prior to August 3, 2011, our common stock was quoted on the OTC Bulletin Board under the symbol “ABTG.”

Although trading in our common stock has occurred on a relatively consistent basis, the volume of shares traded has been sporadic. There can be no assurance that an established trading market will develop, that the current market will be maintained or that a liquid market for our common stock will be available in the future. Investors should not rely on historical stock price performance as an indication of future stock price performance.

The following table shows the quarterly high and low bid prices or sales prices for our common stock over the last two completed fiscal years and subsequent interim periods, as quoted on the OTC Bulletin Board (prior to August 3, 2011) and as reported on the NASDAQ Capital Market (beginning on August 3, 2011). In the case of OTC Bulletin Board quotes, the prices represent quotations by dealers without adjustments for retail mark-ups, mark-downs or commissions and may not represent actual transactions. The prices have been adjusted to reflect the 1- for -100 reverse stock split of our common stock that became effective on July 18, 2011. The last reported sale price of our common stock on March 23, 2012 was $4.59 per share.

	Low		High
Year Ended December 31, 2011
Fourth Quarter	$	4.55	$	8.40
Third Quarter		5.70		13.98
Second Quarter		7.00		9.50
First Quarter		7.60		11.90

Year Ended December 31, 2010
Fourth Quarter		8.00		15.30
Third Quarter		6.00		10.40
Second Quarter		6.20		10.70
First Quarter		10.10		20.00

As of March 23, 2012, there were 138 holders of record of our common stock. Other than our shares held by Vicis, a significant number of shares of our common stock are held in either nominee name or street name brokerage accounts, and consequently, we are unable to determine the number of beneficial owners of our stock.

MANAGEMENT DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATION

THE FOLLOWING DISCUSSION SHOULD BE READ IN CONJUNCTION WITH OUR FINANCIAL STATEMENTS AND THE NOTES RELATED TO THOSE STATEMENTS. SOME OF OUR DISCUSSION IS FORWARD-LOOKING AND INVOLVES RISKS AND UNCERTAINTIES. FOR INFORMATION REGARDING RISK FACTORS THAT COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS, REFER TO THE “RISK FACTORS” SECTION OF THIS ANNUAL REPORT.

Overview

We are a leading provider of a smart grid communications platform that enables utilities to effectively deploy, integrate and communicate with multiple devices creating smart grid applications within the electric power grid. Our smart grid communications platform significantly improves the ability of utilities to use advanced technologies to upgrade their electric power grids, effectively making the grids more intelligent.

Company History

We were incorporated in 1996 in the state of Delaware. Through the third quarter of 2008, we were a development stage company. We are focused on the development of a communications platform that meets the needs of utilities, including specifically for the implementation of smart grid applications.

On July 18, 2011, we implemented a reverse stock split of our issued and outstanding shares of common stock at a ratio of 1-for 100 shares (the “Reverse Split”). The Reverse Split became effective on July 18, 2011 and has been reflected in this Prospectus. On August 3, 2011, our common stock began to trade on the NASDAQ Capital Market under our new ticker symbol “AMBT.”

Duke Energy Relationship

Since 2005, we have maintained a strategic relationship with Duke Energy. The utility is actively deploying our communications nodes and is licensing our AmbientNMS® for its deployment in Ohio. We believe that we are the predominant provider of communications nodes and network management system software for Duke Energy’s Ohio deployment. With what we believe is one of the most forward-looking smart grid initiatives in North America, Duke Energy has announced plans to invest $1 billion over the next five years in smart grid equipment for its service territories, including Ohio, Indiana, Kentucky and the Carolinas

We believe that we have demonstrated that our technology is secure, two-way, flexible, open, scalable, reliable and cost-effective through the total deployment of approximately 75,000 communications nodes in the field with Duke Energy, and we believe that Duke Energy will continue to predominantly use our communications platform for the remainder of its Ohio smart grid deployment. Furthermore, Duke Energy’s pilot deployment of approximately 3,000 communications nodes in the Carolinas predominantly uses our communications platform as well. Throughout the past five years, we have worked with Duke Energy to develop our communications platform, which has enabled Duke Energy’s ability to rapidly deploy its smart grid initiatives. Duke Energy has accelerated its historical deployment rates and is presently deploying thousands of our communications nodes each month.

We believe that we have an opportunity to grow our business with Duke Energy. In addition to the 130,000 communications nodes scheduled for deployment in Ohio, we estimate that Duke Energy could potentially require thousands of communications nodes if it implements a full deployment of smart grid communications nodes in Indiana, Kentucky or the Carolinas.

Since we established our relationship with Duke Energy, we have been focused on developing our technology to meet the needs of their smart grid communications platform. Based upon the success of the relationship and our ability to prove our technology, we have recently begun to expand our infrastructure to focus on new business development, marketing and sales programs and further technology development in order to expand our customer base, and we expect to increase investment in our marketing and sales efforts over the next twelve months.

In January 2011, Duke Energy and Progress Energy announced a proposed merger that is subject to regulatory approval. Together, Duke Energy and Progress Energy have committed to spend a combined $1.5 billion in smart grid initiatives, partially funded by approximately $400 million in total grants awarded to them in 2010 under the ARRA and required to be spent by 2013. If Duke Energy and Progress Energy complete their proposed merger and the combined company adopts Duke Energy’s deployment strategy relating to smart grid initiatives, we believe there could be further opportunity with the combined entity.

Revenue History

We have grown total revenue from $2.2 million in 2009 to $20.4 million in 2010 and to $62.3 million in 2011 due to increased sales of our communications nodes to Duke Energy. Our total revenue of $2.2 million in 2009 declined from $12.6 million in 2008 due mainly to the impact of the introduction of the ARRA. Although the ARRA was passed in September 2009, by late 2008 and early 2009, there was widespread speculation that a significant amount of funding would be made available for smart grid related initiatives. As a result, many utilities with smart grid projects underway, including Duke Energy, substantially slowed their spending until there was further clarity regarding the amount of funding available under the federal program. Furthermore, the language of the Smart Grid Investment Grants, which are part of the ARRA, also provided initial guidance regarding certain technical criteria required for grant eligibility. As such, utilities needed further clarity that the technology in their smart grid programs would qualify for funding. As soon as the ARRA was passed in September 2009, sales of our communications nodes to Duke Energy increased significantly as Duke Energy resumed its smart grid implementation in Ohio. Correspondingly, our total revenue realized for the end of 2009 also began to increase. This phenomenon impacted revenue trends across the entire smart grid sector.

Backlog

We define our backlog as products that we are obligated to deliver based on firm commitments relating to purchase orders received from customers, currently solely Duke Energy. As of December 31, 2011, we had backlog of approximately $35 million.

Critical Accounting Policies and Use of Estimates

The discussion and analysis of our financial condition and results of operations are based upon our financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States. The preparation of these financial statements requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. On an on-going basis, we evaluate our estimates, including those related to revenue recognition, bad debts, investments, intangible assets and income taxes. Our estimates are based on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Actual results may differ from these estimates.

We have identified the accounting policies below as critical to our business operations and the understanding of our results of operations.

Revenue Recognition. Hardware sales consist of smart grid communications nodes as well as system software embedded in the communications nodes. The system software embedded in our communications nodes is used solely in connection with the operation of the products. Upon the sale and shipment of our products, we are not required to update the embedded software for newer versions that are subsequently developed. In addition, we do not offer or provide any free post-contract customer support. There is an original warranty period, which may run for a period of up to 12 months from the sale of the products, in which we may repair or replace products when and if appropriate. As such, we recognize revenue from the sales of our products upon delivery to the customer.

Our proprietary software consists of our AmbientNMS®, which may be sold on a stand-alone basis. The sale or license of AmbientNMS® does not include post-contract customer support unless the customer enters into a maintenance agreement with us. As a result, we recognize revenue from the sale of this software product when shipped. We classify amounts billed to customers before software is shipped as deferred revenue.

We offer maintenance service, on a fee basis, that entitles the purchasers of our products and AmbientNMS® software to benefits including telephone support, updates and upgrades to our products. We amortize such revenue when received over the appropriate period based on the terms of individual agreements and contracts.

Inventory Valuation. We value inventory at the lower of cost or market determined on a first-in, first-out basis. Certain factors may impact the net realizable value of our inventory, including technological changes, market demand, new product introductions and significant changes to our cost structure. We make estimates of reserves for obsolescence based on the current product mix on hand and its expected net realizable value. If actual market conditions are less favorable or other factors arise that are significantly different than those anticipated by us, additional inventory write-downs or increases in obsolescence reserves may be required. We consider lower of cost or market adjustments and inventory reserves as an adjustment to the cost basis of the underlying inventory. Accordingly, we do not record favorable changes in market conditions to inventory in subsequent periods.

Software Development Costs. We have historically expensed costs incurred in the research and development of new software products and enhancements to existing software products as incurred. After we establish technological feasibility, we capitalize additional development costs. No software development costs have been capitalized as of December 31, 2010 or 2011.

Stock-Based Compensation. We account for stock-based compensation in accordance with accounting guidance now codified as Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, 718, “Compensation — Stock Compensation (formerly known as SFAS No. 123(R)).” Under the fair value recognition provision of ASC 718, stock-based compensation cost is estimated at the grant date based on the fair value of the award. We estimate the fair value of stock options granted using the Black-Scholes option pricing model. Key input assumptions used to estimate the fair value of stock options include the exercise price of the award, the expected option term, the expected volatility of our stock over the option’s expected term, the risk-free interest rate over the stock option’s expected term and the annual dividend yield.

On December 20, 2011, the Compensation Committee of the Board of Directors approved grants of options to purchase 960,000 shares of our common stock under the Company’s 2000 Equity Incentive Plan to senior officers. Options as to one third of such shares vested upon grant at a per share exercise price of $6.30. Options as to the balance of such shares are scheduled to vest on a quarterly basis, in eight equal quarterly installments at the end of each quarter, beginning with the quarter ending March 31, 2013, with half of the option grants exercisable at a per share exercise price of $6.75 and the remaining half at $7.25. In addition, options to purchase 394,000 shares of our common stock were granted to the Board of Directors and Advisory Board members which immediately vested as well. As a result of the immediate vesting of a portion of the options granted to senior executives and the options granted to the Board of Directors and Advisory Board members, we recorded a stock based compensation charge of approximately $3.0 million during the fourth quarter of 2011.

Deferred Income Taxes. We recognize deferred income taxes for the tax consequences of “temporary differences” by applying enacted statutory rates applicable to future years to differences between the financial statement carrying amounts and the tax basis of existing assets and liabilities. At December 31, 2011, our deferred income tax assets consisted primarily of net operating loss carryforwards and stock-based compensation charges that have been fully offset with a valuation allowance due to the uncertainty that a tax benefit will be realized from the assets in the future. At December 31, 2011, we had available approximately $68.3 million of net operating loss carryforwards, for U.S. income tax purposes which expire in the years 2016 through 2030. However, due to changes in stock ownership resulting from historical investments, the use of the U.S. net operating loss carryforwards are significantly limited under Section 382 of the Internal Revenue Code. As such, approximately $56 million of our net operating loss carryforwards will expire and will not be available to use against future tax liabilities.

Warranties. We account for our warranties under the FASB ASC 450, “Contingencies.” Our current standard product warranty includes a one-year warranty period for defects in material and workmanship. Due to the limited deployment of products, we had not historically accrued for the cost of warranty obligations and expensed any costs associated with repairing or replacing defective product as incurred. However, due to significantly increased sales volume during 2011, we began accruing a liability of approximately 0.2% of current communications node revenues for the estimated future costs of meeting our warranty obligation, based on our actual historical return rate of products within the one-year warranty period. We make and revise this estimate based on the number of communications nodes delivered and our historical experience with warranty claims. We continually monitor the rate of actual product returns and the quality of our products including the quality of the products produced by our U.S.-based contract manufacturer in China.

We engage in product quality programs and processes, including monitoring and evaluating the quality of component suppliers, in an effort to ensure the quality of our products and reduce our warranty exposure. The warranty obligation will be affected not only by product failure rates, but also the costs to repair or replace failed products and potential service and delivery costs incurred in correcting a product failure. If our actual product failure rates, repair or replacement costs, or service or delivery costs differ from these estimates, accrued warranty costs would be adjusted in the period that such events or costs become known.

Our software license agreements generally include provisions for indemnifying customers against liabilities if our software infringes upon a third party’s intellectual property rights. We have not provided for any reserves for such warranty liabilities. Our software license agreements also generally include a warranty that our software will substantially operate as described in the applicable program documentation. We also warrant that we will perform services in a manner consistent with industry standards. To date, we have not incurred any material costs associated with these product and service performance warranties, and as such we have not provided for any reserves for any such warranty liabilities in our operating results.

RESULTS OF OPERATIONS

Comparison of the Year Ended December 31, 2011 and the Year Ended December 31, 2010

Total Revenue. Total revenue for 2011 was $62.3 million compared to $20.4 million in 2010, representing an increase of approximately 206%. The increase in total revenue for 2011 compared with 2010 primarily reflected an increase in sales volume of our communications nodes delivered as part of Duke Energy’s Ohio smart grid initiative.

Costs of Goods Sold. Cost of goods sold for 2011 was $35.5 million compared to $12.0 million in 2010. The increase in cost of goods sold during 2011 primarily reflected an increase in sales volume to Duke Energy. Cost of goods sold includes all costs related to the manufacture of our products by our contract manufacturer, accruals for warranty and other overhead costs. Our contract manufacturer is responsible for substantially all aspects of manufacturing, including procuring most of the key components required for assembly. Included in cost of goods sold in 2011 was approximately $384,000 of stock-based compensation relating to immediately vesting stock options granted to certain employees.

Gross Profit. Gross profit for 2011 was $26.8 million compared to $8.3 million in 2010, an increase of approximately 222%. Gross margin for 2011 increased slightly to approximately 43% compared to approximately 41% for 2010. The increase in the gross margin for 2011 compared with 2010 was due to lower manufacturing costs resulting from increased volumes at our contract manufacturer and increased efforts in overall cost reduction programs.

Research and Development Expenses. Research and development expenses were approximately $12.2 million for 2011 compared to approximately $6.3 million in 2010. The increase in research and development during 2011 was primarily due to increased personnel and consultant expenses required for the continued development of our communications nodes, enhancements of our AmbientNMS®, and other product development efforts. In addition, included in research and development expenses in 2011 was approximately $521,000 of stock-based compensation relating to immediately vesting stock options granted to certain employees. We believe that our continued development efforts are critical to our strategic objectives of enhancing our technology while simultaneously reducing costs. We expect that our research and development expenses will increase in 2012 as we continue to develop and improve our communications platform.

Selling, General and Administrative Expenses. Selling, general and administrative expenses for 2011 were approximately $9.6 million compared to $5.2 million for 2010. The increase in selling, general and administrative expenses for 2011 compared with 2010 was due to an increase in personnel and related costs, increased efforts to market and commercialize our communications platform and increased costs associated with additional administrative personnel. In addition, included in selling, general and administrative expenses in 2011 was approximately $2.0 million of stock-based compensation relating to immediately vesting stock options granted to certain employees and the Board of Directors. Selling, general and administrative expenses consisted primarily of salaries and other related costs for personnel in executive and other administrative functions. Other significant costs included professional fees for legal, accounting and other services. In 2012, we expect our selling, general and administrative expenses to increase as we continue to increase our efforts to market and commercialize our communication platform.

Interest Income and Expense. Net interest income for 2011 was approximately $19,000 compared to net interest expense of approximately $214,000 in 2010. Interest expense in 2010 related primarily to our 8% Secured Convertible Promissory Notes, which were converted to common stock in January 2010.

Provision for Income Taxes. The provision for income taxes in 2011 consisted of alternative minimum taxes (AMT), resulting from the following (1) stock based compensation expense is not deductible for income tax purposes ( regular or AMT) and (2) AMT net operating loss carryfowards are limited by statute to offset 90% of AMT income.

Comparison of the Year Ended December 31, 2010 and the Year Ended December 31, 2009

Total Revenue. Total revenue for 2010 was $20.4 million compared with $2.2 million for 2009. Total revenue for each of 2009 and 2010 represented the sale of products and license of software to, and maintenance fees from, Duke Energy. The increase in total revenue for 2010 compared with 2009 primarily reflected an increase in the number of communications nodes delivered as part of Duke Energy’s Ohio smart grid initiative.

Costs of Goods Sold. Cost of goods sold for 2010 was $12.0 million compared with $1.8 million for 2009. The increase in cost of goods sold during 2010 primarily reflected the increase in sales volume to Duke Energy. Cost of goods sold included all costs related to the manufacture of our products by a contract manufacturer. The contract manufacturer is responsible for all aspects of manufacturing, including procuring most of the key components required for assembly. Additionally, we recorded approximately $152,000 in charges associated with the write-off of obsolete inventory during 2009.

Our policy is to accrue anticipated warranty costs based upon historical percentages of items returned for repair within one year of the initial sale. Because the repair rate of products under warranty had been minimal, we had not established an historical percentage and, therefore did not provide any warranty liability reserves for the years ended December 31, 2010 and 2009.

Gross Profit. Gross profit for 2010 was $8.3 million compared with $357,000 for 2009. Gross margin for 2010 increased to approximately 41% compared with approximately 16% for 2009. The increase in the gross margin for 2010 compared with 2009 was a reflection of the maturing of our product offering and more stable manufacturing costs, our enhanced ability to plan production and scale based on increased lead-time and transparency in the forecasting and purchasing process of our customer, and a stable and productive relationship with our contract manufacturer.

Research and Development Expenses. Research and development expenses were approximately $6.3 million for 2010 compared with $4.9 million for 2009. Research and development expenses were incurred primarily in designing, developing and field testing our smart grid communications platform and consisted primarily of salaries and related expenses for personnel, contract design and testing services, supplies used and consulting and license fees paid to third parties. The increase in research and development during 2010 was primarily due to increased personnel and consultant expenses required for the continued development of our fourth generation communications nodes and enhancement of our AmbientNMS®. We believe that our continued development efforts are critical to our strategic objectives of enhancing our technology while simultaneously reducing costs.

Selling, General and Administrative Expenses. Selling, general and administrative expenses for 2010 were approximately $5.2 million compared with $4.7 million for 2009. The selling, general and administrative expenses consisted primarily of salaries and other related costs for personnel in executive and other administrative functions. Other significant costs included professional fees for legal, accounting and other services. The increase in selling, general and administrative expenses for 2010 compared with 2009 was due to increased efforts to market and commercialize our communications platform.

Interest Income and Expense. During 2009, we incurred total interest expense of approximately $4.9 million, of which $3.8 million was associated with cash interest and amortization of the beneficial conversion features and deferred financing costs incurred in connection with the placement of our 8% convertible Promissory Notes issued during 2007 and 2008. In addition, $1.1 million of interest expense was incurred in 2009 and was associated with the modification of existing Class A warrant terms. All outstanding convertible notes were converted in January of 2010, significantly reducing interest charges as compared to 2009, resulting in a gain on the conversion of convertible notes of approximately$ 252,000 in 2010.

LIQUIDITY AND CAPITAL RESOURCES

Since inception, we have primarily funded our operations with proceeds from the sale of our securities and, most recently, with revenue from sales of our products. At December 31, 2011, we had working capital of $15.3 million, including cash and cash equivalents of $18.0 million.

Net cash used in operating activities during the years ended December 31, 2009 and 2010 was approximately $7.7 million and $1.6 million, respectively and net cash provided by operating activities during 2011 was approximately $12.1 million. Cash used in operations for the years ended December 31, 2009 and 2010 was primarily due to funding operating losses attributed to spending in research and development and general and administrative expenses associated with the development of our technologies and products and to support the growth of our business. Net cash provided by operating activities in 2011 was primarily due to an increase in product revenue of approximately $41.9 million over the corresponding period in 2010, thereby significantly increasing gross profit and generating cash to pay our ongoing operating expenses.

Net cash used in investing activities during the years ended December 31, 2009, 2010 and 2011 was approximately $269,000, $527,000 and $962,000, respectively. Net cash used in investing activities for all periods was primarily for the purchase of equipment supporting out research and development efforts as well as furniture, fixtures and computer equipment associated with the growth in personnel.

Net cash provided by financing activities during the years ended December 31, 2009 and 2010 was approximately $964,000 and $8.1 million, respectively. Net cash used in financing activities for the year ended December 31, 2011 was approximately $129,000. Net cash provided by financing activities during 2009 and 2010 consisted primary of sales of our securities. Net cash used in financing activities during 2011 consisted primarily of proceeds from the exercise of common stock warrants and stock options offset by costs incurred to date associated with our planned public offering of our common stock as originally announced on August 19, 2011.

We believe that our business plan will provide sufficient liquidity to fund our operating needs for the next 12 months. However, there are factors that can impact our ability continue to fund our operating needs, including:

	●	Our ability to maintain product pricing as expected, particularly in light of increased competition and its unknown effects on market dynamics;
	●	Our and our contract manufacturer’s ability to reduce manufacturing costs as expected;
	●	Our ability to expand sales volume, which is highly dependent on the smart grid implementation plans of Duke Energy and other utilities; and
	●	The need for us to continue to invest in operating activities in order to remain competitive or acquire other businesses and technologies in order to complement our products, expand the breadth of our business, enhance our technical capabilities or otherwise offer growth opportunities.

If we cannot effectively manage these factors, we may need to raise additional capital in order to fund our operating needs. Although we filed with the Securities and Exchange Commission a registration statement on Form S-1 in August 2011 for a proposed public offering of our common stock, we currently do not have any commitments for additional funding. If we are unable to obtain adequate financing or financing on terms satisfactory to us when we require it, our ability to continue to grow or support our business and to respond to business challenges could be significantly limited.

Off-Balance Sheet Arrangements

As of December 31, 2010 and 2011, we did not have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Other than our operating leases for office space and certain other capital lease obligations, we do not engage in off-balance sheet financing arrangements. In addition, we do not engage in trading activities involving non-exchange traded contracts. As such, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships.

Contractual Obligations and Commitments

The following table summarizes our contractual obligations as of December 31, 2011 and the effect such obligations are expected to have on our liquidity and cash flow in future periods:

(in thousands)	Payments Due By Period
Contractual Obligations	Total		Less Than 1 Year		1 – 3 Years		3 – 5 Years		More Than 5 years
Operating Lease Obligations		558		558		0		0		0
Total	$	558	$	558	$	0	$	0	$	0

Recently Issued Accounting Pronouncements

On January 1, 2011, we adopted Accounting Statement Update (ASU) 2009-13 (ASU 2009-13),“Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements,” which eliminates the residual method of allocation, and instead requires companies to use the relative selling price method when allocating revenue in a multiple deliverable arrangement. When applying the relative selling price method, the selling price for each deliverable shall be determined using vendor specific objective evidence of selling price, if it exists and otherwise using third-party evidence of selling price. If neither vendor specific objective evidence nor third-party evidence of selling price exists for a deliverable, companies shall use their best estimate of the selling price for that deliverable when applying the relative selling price method. We elected to adopt this guidance prospectively for all revenue arrangements entered into or materially modified after the date of adoption. The adoption of ASU 2009-13 did not have a material effect on our financial position, results of operations or cash flows.

On January 1, 2011, we adopted ASU 2010-17 (ASU 2010-17), "Revenue Recognition-Milestone Method (Topic 605): Milestone Method of Revenue Recognition." The amendments in this Update are effective on a prospective basis for milestones achieved in fiscal 2011 and thereafter. Our adoption of ASU 2010-17 did not have a material effect on our financial position, results of operations or cash flows.

In May 2011, the Financial Accounting Standards Board (FASB) issued ASU No. 2011-04: Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (ASU 2011-04). ASU 2011-04 clarifies application of fair value measurement and disclosure requirements and is effective for annual periods beginning after December 15, 2011. We do not expect that the provisions of ASU 2011-04 will have a material effect on our financial position and results of operations.

In June 2011, the FASB issued ASU No. 2011-05: Comprehensive Income (Topic 220): Presentation of Comprehensive Income (ASU 2011-05). ASU 2011-05 provides that an entity that reports items of other comprehensive income has the option to present comprehensive income in either one continuous financial statement or two consecutive financial statements. ASU 2011-05 is effective for annual periods beginning after December 15, 2011. We do not expect ASU 2011-05 to have any material impact on our financial position and results of operations.

In September 2011, the FASB issued ASU 2011-08 (ASU 2011-08), “Intangibles Goodwill and Other (Topic 350): Testing Goodwill for Impairment” ASU 2011-08 updated the guidance on the periodic testing of goodwill for impairment. The updated guidance gives companies the option to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The amendment is intended to reduce the cost and complexity of the annual goodwill impairment test by providing entities an option to perform a qualitative assessment to determine whether further impairment testing is necessary. The update ASU 2011-08 is effective for fiscal years beginning after December 15, 2011, with early adoption permitted. We do not expect ASU 2011-08 to have a material effect on our financial position, results of operation or cash flows

We do not believe that any other recently issued, but not yet effective, accounting standard if currently adopted would have a material effect on our accompanying financial statements.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk is a broad term for the risk of economic loss due to adverse changes in the fair value of a financial instrument. These changes may be the result of various factors, including interest rates, foreign exchange rates, commodity prices and/or equity prices. In the normal course of doing business, we may be exposed to the risks associated with foreign currency exchange rates and changes in interest rates.

Foreign Currency Exchange Risk. We bill our customers predominately in U.S. dollars and receive payment predominately in U.S. dollars. Additionally, although our products are manufactured by our contract manufacturer in China, we pay our obligations to it in U.S. dollars. Accordingly, our results of operations and cash flows are not materially subject to fluctuations due to changes in foreign currency exchange rates. If we increase sales of our products outside of the United States, our contracts with foreign customers may be denominated in foreign currency and may become subject to changes in currency exchange rates.

Interest Rate Sensitivity. Interest income and expense are sensitive to changes in the general level of U.S. interest rates. However, based on the nature and current level of our investments, which are cash and cash equivalents, we believe there is no material risk of exposure.

Seasonality. Historically, we have not experienced significant seasonal fluctuations or variations in sales. Since our communications nodes are physical devices that are manually installed by utilities, weather conditions may temporarily impact the timing of deployment. However, we do not expect that adverse weather conditions will result in substantial fluctuations or variations of sales in any particular reporting period.

DESCRIPTION OF OUR BUSINESS

Overview

Our long-standing relationship with Duke Energy, which we believe has one of the most forward-looking smart grid initiatives in North America, has led to rapid growth in our business. We entered into a long-term agreement in September 2009 with Duke Energy to supply the utility with our Ambient Smart Grid® communications platform and license our AmbientNMS® through 2015. We increased revenue from $2.2 million in 2009 to $20.4 million in 2010 to $62.3 million in 2011. As of December 31, 2011, we had backlog of approximately $35 million. We believe that there are opportunities for additional sales of our products and services with Duke Energy. Furthermore, we also intend to leverage our success with the utility to secure additional customers in the global utility market place.

We were incorporated in the state of Delaware on June 26, 1996. Our common stock currently trades on the NASDAQ Capital Market under the symbol “AMBT.”

Industry Overview

The Electric Power Distribution Grid

The grid was largely designed and built decades ago, and is increasingly becoming strained. According to the U.S. Department of Energy, or DOE, in the United States 70% of transmission lines are 25 years old or older; 70% of power transformers are 25 years old or older; and 60% of circuit breakers are 30 years old or older. The current grid infrastructure, both in the United States and abroad, simply is not designed to accommodate the dynamic electricity distribution requirements of today or the future. As a result, the aging grid is prone to reliability, security, availability and power quality issues, costing utilities and consumers billions of dollars each year. For example, according to the Electrical Power Research Institute, or EPRI, power disturbances and quality problems alone cost U.S. businesses between $119 billion and $188 billion each year.

The following factors highlight the deficiencies of today’s grid:

Severely Strained and Aging Grid. The strain on the grid has led to efficiency losses, service interruptions, higher electricity rates and costly unplanned maintenance and repair expenses. According to the EPRI, power quality issues alone already cost between $15 billion and $24 billion per year in the United States. As consumers and industries increase their reliance on electronic devices, these disturbances and quality issues will become more disruptive and more costly. Increased grid efficiency will help reduce the capital required for added grid infrastructure.

Inability of the Grid to Support Proliferation of Renewable Energy and Related Technologies. Over the past few years, utilities and consumers have increased their adoption of centralized and distributed renewable energy, such as wind, solar and energy storage technologies, as a source of electricity. According to the EIA, renewable energy sources will account for 23% of total electricity generation worldwide in 2035. Furthermore, expected growth in electric vehicles will create the need for charging stations, placing additional strain on the grid. The grid will not be able to accommodate all of these renewable energy initiatives. Moreover, approximately half of the states in the United States have some form of renewable portfolio standards, which require that specified amounts of electricity are sourced from renewable sources, resulting in a substantial anticipated increase in the need for grid modernization. This is a global trend evidenced, in part, by the European Union, or EU, climate energy goals. The EU has adopted aggressive climate and energy goals — the “20-20-20” targets — that aim to reduce EU greenhouse gas emissions at least 20% below 1990 levels, derive 20% of EU energy consumption from renewable resources and create a 20% reduction in primary energy use compared with projected levels through improving energy efficiency, in each case, by 2020.

Limited Real-Time Operational Insight, Communication and Analysis. The century-old grid in the United States consists of over 300,000 miles of transmission lines and over 1,000,000 megawatts of generating capacity. The importance of today’s grid to modern society is unquestionable; however, it remains largely untouched by modern networking and communications technologies. For example, power outages are still manually reported for the majority of the grid. The lack of communications technologies represents a significant limiting factor in the amount of information and control available to both utility operators and their customers. The lack of these technologies has also had a limiting effect on the ability of utilities to engage with their customers and for customers to take an active role in their consumption and cost of energy and resources.

The Smart Grid

We believe that grid modernization will address the shortcomings of the current grid as well as deliver significant benefits to utilities and consumers of energy. The smart grid encompasses multiple technologies and applications, and represents significantly more than just smart electric meters. The U.S. Energy Independence and Security Act of 2007 provided the following, thorough definition of the smart grid:

The term “smart grid” refers to a modernization of the electricity delivery system so it monitors, protects and automatically optimizes the operation of its interconnected elements — from the central and distributed generator through the high-voltage network and distribution system, to industrial users and building automation systems, to energy storage installations and to end-use consumers and their thermostats, electric vehicles, appliances and other household devices. The smart grid will be characterized by a two-way flow of electricity and information to create an automated, widely distributed energy delivery network. It incorporates into the grid the benefits of distributed computing and communications to deliver real-time information and enable the near-instantaneous balance of supply and demand at the device level.

In brief, the term “smart grid” refers to the use of advanced communications technologies and modern computing capabilities to upgrade and modernize the electric power grid (and even other utility infrastructures, such as gas and water), effectively making the grid more intelligent and efficient. We believe that the implementation of intelligent and seamless communication across the grid represents the largest expected wave of information technology spending, similar to the previous telecommunications and Internet investment cycles.

Smart Grid Applications

The smart grid will connect millions of devices that generate, distribute, control, monitor and use energy, thereby enabling utilities and consumers to dynamically interact with the energy supply chain. The smart grid is more than just smart meters, and we believe that fully realizing the benefits of the smart grid will require the implementation of a variety of technologies and applications. For all smart grid applications to work seamlessly together, a flexible and open communications platform is needed for the interoperability of each connected smart grid application, including the following:

Smart Meters. Smart meters encompass the meters themselves, related communications equipment and data management systems that record and monitor real-time energy consumption information at regular intervals. Smart meters allow for two-way communication of data between the smart meter and a utility’s back office, providing utilities with valuable information to measure and control production, transmission and distribution more efficiently and providing consumers with information to make informed choices regarding energy consumption. This technology further enables a utility to reduce the costs of operating its distribution system by automating various functions that are currently performed manually, such as reading customer meters and turning power on and off at the customer meter.

Demand Response. Demand response is an initiative in which utilities provide incentives to consumers to reduce energy usage during times of peak demand. Demand response includes technology that can manage the consumption of electricity in conjunction with supply and demand fluctuations, enabling variable pricing and providing information to encourage consumers to make more active decisions about their energy usage. Utilities can use demand response to enable consumers to reduce, or provide direct utility control of, electricity use, particularly during high price/demand periods, by sending time-differentiated prices to customers via the meter and recording customers’ actual real-time usage. Demand response technology enables utilities to better manage their distribution network, delivering electricity more efficiently and potentially reducing peak and baseload generation requirements.

Distribution Automation. Distribution automation encompasses utilities deploying control devices and communications infrastructure to monitor and control energy distribution in real time, enabling intelligent control over grid functions at the distribution level. Utilities use distribution automation applications to directly control the flow of electricity from individual substations to consumers in order to improve the quality of power generation, reduce the frequency, duration and scale of power outages, reduce energy losses and ultimately optimize operating efficiency and reliability of the grid.

Network Management Systems. Utilities require back office software and computer hardware systems to monitor and manage the vast numbers of devices and information collected by those devices from various smart grid applications. Network management systems control smart grid devices and collect and process data in the back office relying on two-way communications.

Smart Grid Requirements

The success of the smart grid, with its promise of delivering significant benefits to utilities, consumers and the environment, will depend upon the successful implementation of smart grid applications that rely on a network communications infrastructure. Due to the varied nature of applications, technologies and communication methods, the dedicated communications infrastructure requires ample flexibility in order to accommodate and support all connected applications. Key requirements of the smart grid include the following:

Communications Platform. A secure, flexible and open communications platform is required to enable the smart grid. The communications platform provides real-time, two-way information flow from multiple smart grid applications to a network management system at a utility’s operations center, providing the critical foundation upon which a utility deploys its smart grid applications. A flexible, purpose-built communications platform accommodates different functional requirements of each smart grid application, allows different communications technologies to work in parallel and allows a utility to rapidly scale a large number of smart grid applications.

Interoperability. Various agencies, including the U.S. National Institute of Standards and Technology and the Institute of Electrical and Electronics Engineers, are developing specific smart grid standards that will allow for software and hardware components from different applications, vendors and technologies to seamlessly work together. Interoperability standards, and an open communications platform that supports them, will allow for growth of the smart grid that is not predicated on any one proprietary network architecture or communication technology.

Scalability. As utilities incorporate millions of smart grid devices into the grid, all of which will generate vast amounts of information, the communications platform must both support all connected applications in parallel and allow for quick and cost-effective deployment of new smart grid devices and new applications. A communications platform that cannot scale or is limited with latency or bandwidth issues seriously curtails realizing the full benefits of a smart grid.

Security. With increasing threats of cyber-attacks and the corresponding increased sophistication of malicious technology, communications infrastructure must provide security to protect the assets of the utility, preserve the reliability of the grid and protect consumers. Secure, IP-based communication protocols are an integral part of any communications platform.

Cost Effectiveness. An interoperable, scalable and flexible communications platform allows a utility to deploy a single platform for all smart grid applications, reducing operation and maintenance costs associated with running separate networks. A flexible communications platform also allows utilities to avoid stranding assets by incorporating legacy technologies into more advanced systems, while also providing a platform for future technologies.

Anticipated Smart Grid Investment

Pike Research forecasts that smart grid investment will total $52 billion in North America by 2015, $80 billion in Europe by 2020 and $171 billion in Asia by 2017. The U.S. government is a substantial proponent of smart grid technologies, primarily through the American Recovery and Reinvestment Act of 2009, or ARRA, which awarded more than $3.4 billion in stimulus funding for smart grid technology development and demonstration, plus $615 million for smart grid storage, across 99 smart grid initiatives to be spent by 2013. Due to the cost-share nature of the awards, U.S. investment in smart grid technologies associated with the ARRA reached approximately $8 billion in projects to be completed by 2015. The rollout of smart meters, one specific smart grid application, is currently a driving factor in the deployment of the smart grid. According to EIA, approximately 7% of all electric meters in the United States are smart meters, illustrating a large remaining opportunity for smart meters alone.

We expect that distribution automation, another important smart grid application, may represent the fastest growing and potentially largest area of smart grid investment. According to SBI Energy, the global substation automation product market is expected to reach $106 billion by 2015, where a bulk of the growth is expected to come from countries that are working to modernize their electricity networks and accommodate smart grid technologies. We expect future investment in all smart grid applications and technologies to substantially increase.

Smart Grid Benefits

The following represent some of the most significant benefits of the smart grid:

Reduces Costs for Utilities and Consumers. To meet the long-term demand for electricity, utilities will need to invest substantial capital for added generation and transmission and distribution infrastructure. However, according to the DOE, utilities in the United States can save up to $163 billion through 2025 in costs associated with this investment through increased energy efficiency with the grid, reducing transmission congestion and preserving reserve capacity resulting from the deployment of smart grid applications. By avoiding such substantial costs, utilities can therefore better mitigate anticipated consumer rate increases. Moreover, the two-way communication facilitated by smart grid technologies will enhance utilities’ ability to balance supply and demand of electricity, allowing them to more efficiently utilize their generation assets and reduce the amount of expensive peak demand assets. According to the EPRI, an investment of $338 to $476 billion in smart grid initiatives over the next 20 years will provide overall benefits valued between $1.3 and $2.0 trillion.

Increases Power Reliability and Quality. The smart grid’s two-way communications capabilities provide real-time information about the grid’s electricity characteristics, such as current and voltage, allowing grid operators and smart devices to identify and optimize how electricity flows through the grid. Smart grid technologies, such as distributed capacitor banks and Volt/VAR controls, can smooth out the overall quality of electricity as well as protect grid elements and customers against sudden power surges and other transient power events, all while decreasing line loss. According to the EPRI, power quality issues cost between $15 billion and $24 billion per year in the United States, costs that we believe can be substantially avoided by utilizing the smart grid.

Accommodates Renewable Energy Sources and Electric Vehicles. Utilities need smart grid technologies to support the widespread adoption of renewable energy sources, electric vehicles and other clean technology solutions. The intermittent nature of renewable electricity, the developing energy storage technologies and the demand of electric vehicles all create challenges for utilities in matching energy generating sources with demand. We believe that each of these issues is effectively addressed with a full smart grid implementation.

Facilitates Consumer Empowerment. Two-way communication will allow consumers to proactively monitor and control the way in which they consume electricity, which will ultimately help consumers to lower their electricity bills. Utilities can also develop improved pricing practices aimed at creating a more efficient pricing structure that addresses potential pricing inequalities during normal and peak demand cycles.

Provides a Platform for Technology Innovation. The development of new smart grid applications and technologies and their continued integration into the grid are critical to full development of the smart grid. The smart grid will allow for the seamless integration of new technologies into the grid without the need to substantially change existing infrastructure, thereby avoiding significant capital costs required to support ever-evolving technologies.

Our Solution

The Ambient Smart Grid® Communications Platform

The Ambient Smart Grid® communications platform, which includes hardware, software and firmware, enables utilities to both effectively manage smart grid applications and directly integrate certain applications into our products themselves. Our communications platform provides a utility with a secure, two-way, flexible and open IP architecture that efficiently networks smart grid applications and different technologies within each application and supports multiple communications technologies currently used by utilities, such as Wi-Fi, radio frequency, cellular technologies, power line communications, serial and Ethernet. Our communications platform enables the integration of smart grid applications, such as smart metering, demand response, distribution automation and monitoring, and direct load control. It also provides an open and flexible platform allowing for the addition of multiple applications, as well as enhancements and future applications.

Our Ambient Smart Grid® communications nodes are attached on or near a utility’s transformer, and they support applications and connectivity to devices that comprise the smart grid. These communications nodes are physical boxes we designed for use in the harsh, outdoor environments in which utilities operate. Our network management system, known as AmbientNMS® is the software that manages the large numbers of devices on a smart grid network. By enabling such system interoperability, our communications platform both reduces implementation and ongoing communications costs, and improves overall power management efficiencies. Furthermore, our communications platform also accommodate smart grid applications installed directly into our communications nodes, which include our own developed technology and third-party technology, thereby substantially increasing their functionality.

The following diagram depicts our products in the utility infrastructure:

Ambient Smart Grid® Benefits

Our products offer the following benefits to utilities:

Support of a Single Network Through Flexible Communications. Our communications nodes support multiple communication technologies simultaneously, allowing a utility to leverage a single communications platform to support many smart grid applications that rely on different communication technologies, such as cellular, Wi-Fi, 900MHz radio frequency, power line carrier, serial and Ethernet, all operating in parallel in a single communications node.

Open Platform for Scalability and Interoperability. Our AmbientNMS®, or third-party management systems, can manage our open communications platform. Our communications platform offers flexibility that allows utilities to deploy multiple smart grid applications from multiple vendors, including our competitors, and it can evolve with new technologies.

Preservation of Utility Smart Grid Investments. The flexibility and open architecture of our communications platform protect a utility against stranding existing assets, including an investment in our communications platform itself. It is a major impediment for utility smart grid investment if a utility is not able to recover, or is concerned about recovering, the costs of previously deployed assets. For example, our communications nodes can support the collection of data from legacy, one-way communicating meters, (often referred to as AMR meters) which many utilities have previously installed and carry significant undepreciated value on their balance sheets. It is generally not cost effective for utilities to replace these legacy meters with current, two-way communicating smart meters; however, they can use our communications nodes to increase the intelligence/functionality of the existing system and eliminate costly, time-delayed manual data collection routines, such as drive-by meter readings. As utilities gradually replace legacy smart grid assets with current technologies throughout the natural replacement cycle, they can seamlessly integrate into our existing communications nodes and communications platform, eliminating the need for a costly, wholesale deployment as smart grid technologies and applications continue to evolve.

Local Application Hosting and Development Framework. We have designed our communications nodes to host both Ambient-developed applications and third-party applications. By leveraging our open communications platform, excess processing power and flash memory, we can integrate smart grid applications for utilities directly into our communications nodes, expanding their overall functionality. Our open framework and flexibility provide an environment for new applications and the ability to add newly developed or tailored applications to our communications nodes even after they have been deployed. Utilities can perform central updates to our communications nodes, eliminating the need for deploying human and equipment capital, thereby providing for quick and inexpensive software updates.

Remote and Distributed Intelligence. Our communications nodes are equipped with powerful processing capabilities that allow for local management and control of smart grid data, which may be aggregated from multiple smart grid applications. Processing and storage capabilities within our communications nodes allow a utility to more efficiently manage a vast amount of distributed data.

Secure Communications. We secure our communications platform through the use of both physical tamper detection features and secure protocols that encrypt data traffic. Additionally, we are active participants in helping to establish industry standards regarding security and other technical requirements, allowing us to continually improve the security of our products.

Reduced Overall Communications Implementation and Operating Costs. We deliver our communications platform completely preconfigured to the needs of the utility, allowing for a rapid and simplified deployment. Simplifying the deployment process of smart grid applications saves utilities time and cost because the deployments of smart grid applications require a substantial human effort. Our communications nodes are deployed preconfigured and are capable of communicating with several different applications via a variety of communication technologies. As a result, no other follow-on effort is required in order to become active within a utility’s communications network. Furthermore, there is no need for a utility to develop and invest in separate, application-specific communications platforms in order to integrate all smart grid-related assets because our communications platform provides for a single network that can accommodate a variety of applications and technologies in parallel.

Our Products and Services

Ambient Smart Grid® Communications Nodes. Communications nodes are physical boxes that contain the hardware and software needed for communications and data collection in support of smart grid assets. We configured our communications nodes to act as individual data processors and collectors that receive signals from other networked devices, enabling smart grid applications. Our communications nodes can also contain our own or third-party embedded smart grid applications. We are currently in final testing and evaluation of our fourth-generation communications nodes. The following is a graphical depiction of how our communications nodes interact and connect with smart grid applications and the utility.

AmbientNMS® is a network management system that manages large numbers of communications nodes, devices and customers on a smart grid network. A utility can use the AmbientNMS® to effectively manage its entire smart grid distribution system, providing valuable information over a single communications network. We customize AmbientNMS®, providing a utility with the tools necessary to tailor its monitoring and processing and to act upon vast amounts of information on a real-time basis. For example, we have integrated our AmbientNMS® into an industry standard Distribution and Outage Management System (DOMS) that provides for the delivery of faster, more accurate information to power outage notification and restoration systems. This allows utilities to quickly assess and respond to power delivery issues in reduced response time, thereby better managing disruptions and enhancing system reliability. AmbientNMS® also provides the functionality to predict, and precisely control, the amount of data traffic to be used by individual devices and the communications network as a whole. Utilities can systematically push software updates to deployed communications nodes and other downstream devices.

Ambient Energy Sensing Solution. Our Energy Sensing Solution monitors critical aspects of a utility’s distribution network through measurement of current and voltage characteristics. Having the capability of measuring and monitoring power quality allows a utility to obtain real-time insight into characteristics such as power factor and general power quality, as well as the ability to quickly identify problem areas from a central location without having to deploy equipment and human capital to do so. Real-time power quality monitoring also allows utilities to better interface with their customers who may have strict tolerances associated with their power requirements, and it also can provide critical information for outage notification and restoration systems. The hardware and software used in our Energy Sensing Solution are incorporated directly into our communications nodes, creating a much more efficient use of capital and utility pole real estate.

Partial Discharge Monitoring. The same Energy Sensing technology that allows our communications platform to pull current information from the medium voltage distribution lines, also allows our communications nodes to monitor the health of the power lines. Real-time information regarding the health of buried power lines is not generally available today. Our communications platform offers utilities this information, thereby allowing utilities the ability to more-effectively maintain their underground distribution lines and manage their replacement schedules.

Maintenance and Consulting Services. We provide maintenance and implementation services to maintain the software installed within our communications platform. We can remotely distribute software upgrades and added features to deployed communications nodes within the network. We also provide a variety of consulting services relating to product development, network management services and smart grid deployment strategies. We provide maintenance and consulting services to provide a turnkey offering of our communications platform.

Duke Energy Relationship

Since 2005, we have maintained a strategic relationship with Duke Energy and we believe that we are the leading supplier of its smart grid communications technology in connection with its smart grid implementation. With what we believe is one of the most forward-looking smart grid initiatives in North America, Duke Energy announced plans to invest $1 billion over the next five years in smart grid equipment for its service territories including Ohio, Indiana, Kentucky and the Carolinas. Specifically, Duke Energy’s smart grid deployment includes digital and automated technology, such as communications nodes, smart meters and automated power delivery equipment. The following table summarizes the evolution of our relationship with Duke Energy:

2005	●	Security and safety testing of our communications nodes

2006	●	Delivery of approximately 700 communications nodes for pilot deployment

2008	●	Commercial agreement for 9,000 communications nodes

2009	●	Award to Duke Energy of $204 million in ARRA digital grid stimulus funds and Duke Energy announcement of plans to invest a total of $1 billion in smart grid deployment initiatives over five years
	●	Long-term supply agreement with Duke Energy to supply our communications nodes and services through 2015

2010	●	Full-scale smart grid deployment by Duke Energy in Ohio, which includes smart meters, automated power distribution equipment and a communications network encompassing more than 130,000 of our communications nodes, 700,000 electric meters and 450,000 gas meters
	●	Deployment by Duke Energy of approximately 20,000 of our communications nodes

2011	●	Deployed a cumulative total of approximately 75,000 Ambient communications nodes, including approximately 3,000 of our communications nodes in the Carolinas
	●	Total backlog of approximately $35 million as of December 31, 2011

Duke Energy is actively deploying thousands of our communications nodes each month and is licensing the AmbientNMS® system, specifically for its deployment in Ohio. We believe that we are the predominant provider of communications nodes and network management system software for Duke Energy’s Ohio deployment.

We believe that we have demonstrated that our technology is secure, two-way, flexible, open, scalable, reliable and cost-effective through the total deployment of approximately 75,000 communications nodes in the field with Duke Energy. We believe that Duke Energy will continue to predominantly use our communications platform for the remainder of its Ohio smart grid deployment through 2013. Furthermore, Duke Energy’s pilot deployment of approximately 3,000 communications nodes in the Carolinas predominantly uses our communications platform as well. Throughout the past five years, we have worked with Duke Energy to develop our communications platform, which has enabled Duke Energy’s ability to deploy its smart grid initiatives.

We believe that we have a substantial opportunity to grow our business with Duke Energy. In addition to the 130,000 communications nodes scheduled for deployment in Ohio, we estimate that Duke Energy would potentially require hundreds of thousands of communications nodes if it implements a full deployment of smart grid communications nodes in Indiana, Kentucky and the Carolinas. According to Duke Energy, it is currently working through the planning process to finalize full-scale deployment plans in Kentucky and the Carolinas and has filed with the North Carolina Public Utilities Commission for the required approvals. Duke Energy is using information from its North Carolina pilot programs and its Ohio deployment to enhance its customer experience in its other service territories. We believe that substantially all smart grid communications nodes deployed by Duke Energy to date are our communications nodes.

Competitive Strengths

We believe that the following competitive strengths help us to maintain a leading position in providing smart grid communications solutions to utilities:

Proven Technology. Since 2008, Duke Energy has successfully deployed our communications platform. With the deployment of approximately 75,000 communications nodes providing the connectivity for a variety of smart grid applications, we have demonstrated that our technology is quickly scalable and highly reliable. We believe that our communications nodes have met all of the strict reliability requirements of Duke Energy and have proven reliable through years of exposure to the elements. We believe that our continued ability to satisfy Duke Energy’s rigorous qualification standards and testing, as well as our proven ability to scale, provides us with an advantage over many of our competitors.

Premier Utility Customer. Duke Energy is one of the largest utilities in the United States with what we believe to be one of the most forward-looking smart grid initiatives in North America. We have served as a strategic partner of Duke Energy’s smart grid programs since 2005. Duke Energy has successfully deployed our products on a commercial scale. We believe that other utilities will adopt Duke Energy’s vision of implementing a communications platform that can accommodate a variety of smart grid applications and communications technologies, moving beyond a focus on smart meters, in order to realize the full benefits of the smart grid.

Communications Focused. Since 2000, we have maintained a focus on the development of a communications platform that meets the needs of utilities. Our commitment to this market segment allows us to focus all research and development and engineering efforts on meeting the challenges of this market and rapidly responding to customer needs. We do not design or provide equipment such as meters or home area network devices. Rather, we focus on the communications platform that enables these devices. Our focus, experience and industry know-how, built over three increasingly robust generations of our current communications platform, allow us to quickly react to the ever-changing and individualized needs of utilities, thereby providing a competitive edge over our competitors with products that may not represent their core competency.

Purpose-Built Products. Our substantial industry experience and relationship with Duke Energy have led to the development of products that are purpose-built for the harsh, outdoor environments in which utilities must operate. We have designed our equipment for direct placement onto the distribution infrastructure, which exposes it to the natural elements, without the need for an additional enclosure. Further, the internal elements of our communications nodes include, which includes hardened components, battery backups, excess surge protection and other components. Preconfigured and self-registering communications nodes allow for rapid and safe installation and eliminate the need for on-site field engineers, reducing installation time and cost.

Our Growth Strategy

Our objective is to maintain our market leadership position in providing a communications and application platform that enables a utility’s comprehensive smart grid initiatives. The following key initiatives comprise our growth strategy:

Expand Our Relationship with Duke Energy. We plan to expand our relationship with Duke Energy as it continues its smart grid deployment initiatives in additional service territories and with additional applications. We expect that, as Duke Energy deploys smart grid assets in other regions, including Indiana, Kentucky and the Carolinas, an opportunity exists for us to provide thousands of our communications nodes. Furthermore, as we continue to work with Duke Energy, we expect that we will be able to develop and provide additional product offerings.

Secure New Utility Customers. We intend to leverage our successful commercial deployment with Duke Energy to secure new domestic and international customers that are evaluating communications platforms to accommodate and integrate a variety of smart grid applications. These new customers may include utilities that have already deployed smart meter-centric systems and utilities that are still developing their smart grid plans. We intend to use this industry momentum in promoting our communications platform to the many utilities with whom we have relationships, as well as other utilities interested in an open communications architecture. We will also promote our communications platform to utilities that are limited by legacy metering technology. We believe that our technology can help utilities expand the functionality of their previously deployed smart metering initiatives, and we intend to pursue this market segment. To facilitate this initiative, we expect to substantially increase our investment in business development activities, including investing in initiatives aimed at penetrating both domestic and international markets.

Establish Strategic Relationships. We plan to form additional strategic relationships with smart grid application vendors, including meter manufacturers, distribution automation equipment manufacturers, communications providers and other key value-added providers in the smart grid industry. By establishing such relationships, we believe that we can accelerate the sales of our products. Further, by incorporating our communications platform into existing smart grid applications, we can help such providers offer a complete smart grid solution in addition to the equipment that they offer, while lowering the overall cost of deployment for a utility.

Continue Product Innovation and Development. We will continue to invest in the development of new capabilities for our communications platform in order to meet the evolving needs of utilities. For example, we have already developed Energy Sensing Solutions and Partial Discharge Monitoring that are directly integrated into our communications nodes. We will also continue to invest in expanding the functionality of our communications platform to accommodate the proprietary technologies of our competitors, thereby providing utilities with the added flexibility of utilizing multiple vendors. We have released three generations of our Ambient Smart Grid® products, and we are currently in the final testing stages of our fourth generation products, which we expect to begin shipping during 2012. With our commitment to research and development, we believe that we will provide significantly improved products with greater functionality delivered at lower cost than previously released products.

Sales and Marketing

We believe that the successful deployment of Duke Energy’s smart grid implementation in Ohio, which includes our communications platform, will result in other utilities adopting similar smart grid strategies to fully realize the benefits of the smart grid. We expect to leverage this success in order to acquire new utility customers. We expect to increase selling, marketing and business development activities, including the hire of additional personnel, to secure new customers domestically and internationally.

Given the strategic impact of smart grid applications on a utility, a utility’s decision-making process typically involves top-level executives and large multi-functional teams across many organizational layers. Utilities generally undertake extensive budgeting, procurement, competitive bidding, technical and performance review activities. Additionally, utilities often seek regulatory approval for projects if they expect to recover project costs through customer rate base increases. Such regulatory approval processes can be lengthy. A typical sales cycle with a new utility can take 12 months or more, depending on the size of the utility and the smart grid initiatives it intends to deploy. Utilities generally conduct both lab testing and field pilots to verify the functionality of products prior to awarding a contract for a larger deployment. However, based upon our experience with pilot programs with Duke Energy and the flexible nature of our communications platform, we believe that we are well positioned to effectively execute such pilot programs. Furthermore, new customers can learn how our technology is deployed within Duke Energy’s territories. For example, our communications platform is profiled at Duke Energy’s Envision Center in Ohio where prospective customers can observe the integration of our technology into Duke Energy’s smart grid initiatives. Furthermore, prospective customers can gain a better understanding of the potential financial benefits of a smart grid related project as documented in the results of an independent third-party audit conducted at the request of the Public Utility Commission of Ohio relating to Duke Energy’s Ohio smart grid project progress to date.

Strategic Alliances and Relationships

We believe that we possess the internal resources for the further development of our technology. However, we have, and will continue to develop, relationships with certain suppliers, smart grid equipment manufacturers and wireless communication providers to ensure that we can offer competitive products to support our business development initiatives. Specifically, we have established relationships with certain component suppliers, such as Qualcomm, Sierra Wireless and Novatel Wireless. We have also entered into joint marketing agreements with certain wireless communication providers, including Verizon Wireless and Sprint.

As an example of our efforts to improve the interoperability of our communications platform with various smart grid applications, we have entered into an Interoperability and Co-Marketing Agreement with Tollgrade Communications, Inc., a leading provider of network assurance solutions for the telecommunications and utility industries, which allows us to incorporate its LightHouseTM centralized remote monitoring system for electric power utilities and also provides for the opportunity to develop additional technologies.

Research and Development

The majority of our employees are engaged in product research and development activities. We also engage independent contractors to provide research and development services. Research and development is critical to ensure the continued success and growth of our business. We plan to expand our research and development activities, including hiring additional personnel. We also intend to continue to work with our customers so that we can continue to develop and provide additional product offerings.

We incurred research and development expenses of approximately $4.9 million in 2009, $6.3 million in 2010 and $12.2 million in 2011.

Intellectual Property

We currently rely upon a combination of trade secrets, patents, copyrights and trademarks, as well as non-disclosure agreements and invention assignment agreements, to protect our technologies and other proprietary company information. As of December 31, 2011, our intellectual property portfolio included 26 patents issued or allowed by the United States Patent and Trademark Office, (USPTO) and we have 5 pending patent applications in the United States. We have also filed many of our U.S. patents in various foreign jurisdictions, and expect that we will file our U.S. pending patent applications in foreign jurisdictions as well. Approximately half of our issued and pending U.S. patents relate to our legacy utilities communications technologies, and the other half relate to our communications platform, including our Energy Sensing Solution. Our issued U.S. patents will expire between 2020 and 2029. Ambient®, Ambient Smart Grid®, Communications for a Smarter Grid® and AmbientNMS® are registered trademarks of Ambient Corporation with the USPTO. We have other marks registered and pending with the USPTO.

Our policy is to require our employees, consultants, advisors and collaborators to execute confidentiality agreements. Additionally, we require our employees and consultants to execute assignment of invention agreements upon the commencement of employment, consulting or advisory relationships. These agreements generally provide that all confidential information developed or made known to a party by us during the course of the party’s association with our company is to be kept confidential and not to be disclosed to third parties except in specific circumstances. In the case of employees and consultants, the agreements also provide that all inventions conceived by the individuals in the course of their employment or consulting relationship will be our exclusive property.

Employees

As of December 31, 2011, we had 88 full-time employees. Almost of all of our employees are located at our Newton, Massachusetts headquarters, and we have three field engineers located at various Duke Energy locations. None of our employees are covered by collective bargaining agreements. We have never experienced any work stoppages and consider our relations with our employees to be good.

We have had a contract with Insperity, formerly known as Administaff, which is a professional employment organization. Pursuant to this contract, we and Insperity were co-employers of our personnel. Insperity was responsible for paying the salaries and wages of our personnel and providing our personnel with health, dental and various other types of insurance and benefits at favorable rates for which we would not otherwise qualify. Insperity paid salaries and wages of our personnel directly from our bank accounts, and we paid Insperity a fee for its services.

As of January 1, 2012, we terminated our contract with Insperity and currently administer our human resource related activities internally.

Manufacturing and Assembly

We have a Master Supply and Alliance Agreement with Bel Fuse Inc., a global producer of high-quality electronic components, for the manufacture and assembly of our communications nodes. We leverage the capabilities of Bel Fuse Inc. with respect to its low-cost, global manufacturing capabilities, supply-chain management and engineering expertise. As we continue to value engineer our communications nodes, deliver higher volumes and source alternative key components, we believe that we will continue to reduce our production costs.

Our products are made to order and are shipped directly to our customer’s warehouses in the United States. We purchase components, such as power cords, brackets and other accessories, which typically are shipped directly to our customer. In order to minimize total cost and limit our exposure of excess inventory, we typically do not hold significant amounts of finished goods or component materials at any given time.

Competition

Competition in the smart grid market is increasing and involves evolving technologies, developing industry standards, frequent new product introductions, changes in customer or regulatory requirements and localized market requirements. Competitive pressures require us to keep pace with the evolving needs of utilities; to continue to develop and introduce new products, features and services in a timely, efficient and cost-effective manner; and to stay abreast of regulatory factors affecting the utility industry.

We compete with a wide array of manufacturers, vendors, strategic alliances, systems developers and other businesses. These include smart grid communications technology companies, ranging from relatively smaller companies focusing mainly on communications technology to large Internet, hardware and software companies. In addition, some providers of smart meters may add communications capabilities in the future to provide some level of connectivity to the utility’s back office.

Some of our present and potential future competitors have, or may have, greater name recognition, experience and customer bases, as well as substantially greater financial, technical, sales, marketing, manufacturing and other resources than we possess and that afford them competitive advantages. These potential competitors may undertake more extensive marketing campaigns, adopt more aggressive pricing policies, obtain more favorable pricing from suppliers and manufacturers and exert more influence on sales channels than we do. Competitors may sell products at lower prices in order to obtain market share. Competitors may be able to respond more quickly than we can to new or emerging technologies and changes in customer requirements. Competitors may also be able to devote greater resources to the development, promotion and sale of their products and services than we can. Competitors may introduce products and services that are more cost-efficient, provide superior performance or achieve greater market acceptance than our products and services. Other companies may also drive technological innovation and develop products that are equal or superior in quality and performance to our products and render our products non-competitive or obsolete.

We believe that we compete effectively in the market based on a number of factors. These factors include the proven technology of our communications platform, our successful commercial deployments with Duke Energy, our focus on our communications platform, our scalable and interoperable products that we have purpose-built for the utility environment and our competitive cost of ownership. However, we may have to change our product offerings, invest more heavily in research and development or business development or acquire complementary technologies in order to remain competitive in the future.

PROPERTIES

We do not own any real property. Our corporate office in Newton, Massachusetts consists of approximately 20,242 square feet used for office and research and development purposes. The lease term for the premises commenced in September 2009 and continues through December 2012.

LEGAL PROCEEDINGS

We are not involved in any pending legal proceedings that we believe could result in a material adverse effect on our business or operations.

MANAGEMENT

The following table sets forth certain information regarding our Directors and Executive Officers. The age of each Director and Executive Officer listed below is given as of March 23, 2012:

Name	Age	Position
John J. Joyce (1)	60	Chairman of the Board, Chief Executive Officer, President and Director
Ramdas Rao	46	Chief Technology Officer and Senior Vice President
Mark L. Fidler	41	Chief Financial Officer, Treasurer and Vice President
Michael Widland (2)	70	Director
D. Howard Pierce (3)(4)	70	Director
Thomas Michael Higgins (3) (4)	55	Director
Shad L. Stastney (1)	41	Director
Francesca E. Scarito (2)(3)	47	Director

__________

(1)	Member of the Finance Committee

(2)	Member of the Compensation Committee

(3)	Member of the Audit Committee

(4)	Member of the Nominating and Corporate Governance Committee

John J. Joyce has been the Chairman of the Board of Directors, Chief Executive Officer, and President since September 2001, and served as our Chief Operating Officer from November 2000 through August 2001. Since September 2010, Mr. Joyce has served on the Finance Committee. Prior to August 2011, Mr. Joyce also served as our Treasurer. From September 1996 to October 2000, Mr. Joyce served as Senior Vice President of ABB Financial Services Inc. and President of ABB Financial Consulting, the Americas, where he also led the global energy consulting practice within Financial Services. Mr. Joyce developed the Americas branch of ABB Financial Consulting, the financial management consultancy business of ABB Financial Services. From December 1993 to August 1996, Mr. Joyce served with The Capital Markets & Treasury Practice of Price Waterhouse LLP. Returning to the firm he had previously served for more than five years in the general audit practice, Mr. Joyce assumed the responsibilities of Manager, in which he advised corporations on a variety of business issues and strategies. Mr. Joyce was promoted to Director in June 1995. Mr. Joyce brings to our board significant experience in the energy industry and a deep knowledge of our business and our customers, and contributes a perspective based on his previous career in both finance and accounting.

Ramdas Rao has been our Chief Technology Officer since September 2006 and Senior Vice President since October 2010, has served as our Chief Technology Officer since July 2006 and served as our Chief Network Architect from September 2000 through July 2006. From March 2000 until September 2000, Mr. Rao was the Chief Information Officer at Mullen, a large advertising agency in North America. From November 1995 until February 2000, he was the President and Co-Founder of Gaialinks Inc., a company engaged in the development of network management software tools and providing network analysis and consulting services for large heterogeneous, multi-vendor, multi-protocol networks and systems. From January 1990 through November 1995, he was affiliated with Boston University where he was Associate Director (from January 1995 through November 1995) and a Network Systems Manager (from July 1990 through December 1994).

Mark L. Fidler has been our Principal Financial Officer and Vice President since June 2011 and our Chief Financial Officer since August 4, 2011. Mr. Fidler has also served as our Treasurer since August 15, 2011. Prior to joining our company, Mr. Fidler spent ten years at Evergreen Solar Inc. in positions of increasing responsibility, first as Corporate Controller from 2001 to 2006 and most recently as Vice President of Finance and Treasurer. While at Evergreen Solar, Mr. Fidler was responsible for developing and implementing corporate-wide accounting and finance infrastructure and internal controls to support the Company’s world-wide expansion to over $330 million in revenue. Mr. Fidler also was responsible for worldwide information technology and Investor Relations and played key roles in securing almost $1 billion in financing during his tenure with Evergreen Solar. Prior to his tenure at Evergreen Solar, Mr. Fidler held various senior finance roles at The Boston Consulting Group from 1998 to 2001 and Hampshire Chemical, a division of Dow Chemical, from 1996 to 1998. From 1992 to 1995, Mr. Fidler was with the audit practice of Coopers & Lybrand.

Michael L. Widland has served on our Board of Directors since November 2000 and serves on the Compensation Committee as its chair (since March 2001). Mr. Widland has been actively practicing law since 1965 and is presently a partner at Shipman & Goodwin LLP of Stamford, Connecticut. Mr. Widland practices in the areas of commercial and corporate transactions, including financing. He is a former Connecticut Chairman of the Public Contract Section and Business Law Section of the American Bar Association and a member of the Association of Commercial Finance Attorneys. Mr. Widland’s academic degrees combined with his extensive professional experience in corporate law provide our board with valuable resources in its work to ensure that we comply with rules and regulations applicable to us.

D. Howard Pierce has served on our Board of Directors since November 2004 and serves on the Audit Committee (since November 2004) and Nominating and Corporate Governance Committee as its chair (since July 2011). Until his retirement in June 2001, he served as President and CEO of ABB, Inc., a $5 billion U.S. subsidiary of global industrial, energy and automation provider ABB, Ltd. Prior to assuming leadership of ABB, Inc., Mr. Pierce served in a number of key executive positions, including President of ABB’s Steam Power Plants and Environmental Systems and President of ABB China Ltd. In addition to serving on our board, Mr. Pierce serves on the board of directors of Harsco Corporation, a publicly traded, New York Stock Exchange-listed company, where he also serves as chairman of the Audit and Compensation Committees. Mr. Pierce’s executive experience in the international business community with a specific focus on serving the utility industry while at ABB provides our board with a business perspective and insight that is beneficial to our company.

Thomas Michael Higgins has served on our Board of Directors since September 2006 and serves on the Audit Committee as its chair (since September 2006) and the Nominating and Corporate Governance Committee (since July 2011). Mr. Higgins has served as the Senior Vice President of Finance and Chief Financial Officer of the College Board since June 2003. Prior to the College Board, Mr. Higgins was a partner in the New York City accounting firm of Silverman Linden Higgins LLP from February 1993 to June 2003. Mr. Higgins also worked in the New Jersey offices of Coopers & Lybrand LLP from January 1992 to January 1993 and at Ernst & Young LLP from 1977 to 1991. Mr. Higgins is a member of the American Institute of Certified Public Accountants as well as the New Jersey and New York State Society of Certified Public Accountants. Mr. Higgins’ extensive experience as a certified public accountant was instrumental in his appointment to the Audit Committee and provides our board with a critical accounting perspective.

Shad L. Stastney has served on our Board of Directors since June 2008. He has also served on the Finance Committee since September 2010 and as its chair since August 2011. Mr. Stastney is a founding partner of Vicis Capital, LLC, the investment advisor to Vicis Capital Master Fund, or Vicis, a multi-strategy hedge fund. Mr. Stastney has served as Chief Operating Officer of Vicis Capital since June 2004. Prior to Vicis Capital, from July 2001 through May 2004, Mr. Stastney served in the same capacity at Victus Capital. Before Victus Capital, Mr. Stastney was a Director at Credit Suisse First Boston in New York. Mr. Stastney currently serves on the boards of directors of China Hydroelectric Corp., China New Energy Group Company, OptimizeRx Corporation, The Amacore Group, Inc., Master Silicon Carbide Industries, Inc., Deer Valley Corporation, Infusion Brands International, Inc., and Zurvita Holdings, Inc. and formerly served on the board of MDWerks, Inc. and Medical Solutions Management, Inc. Mr. Stastney’s background and experience provide management and the Board with significant experience in growing companies.

Francesca E. Scarito has served on our Board of Directors since June 2011 and serves on the Audit Committee (since July 2011) and Compensation Committee (since July 2011). Ms. Scarito is President of RS Finance & Consulting, LLC, a boutique investment bank located in Boston, Massachusetts. Ms. Scarito has been an investment banker for over 20 years and has extensive experience in private capital, equity capital markets and mergers and acquisitions. Prior to joining RS Finance & Consulting, LLC in April 2009, Ms. Scarito was a Managing Director of Canaccord Adams Inc. from May 2007 through October 2008. Ms. Scarito also was a Managing Director at Legacy Partners Group LLC from July 2004 through February 2007 and at its successor Friedman Billings Ramsey from February 2007 through April 2007. Ms. Scarito’s extensive experience advising corporate executives and boards of directors on strategic initiatives, financings and capital markets strategy make her a valuable, objective resource for our company on these matters.

Our executive officers are appointed by, and serve at the discretion of, our Board of Directors. There are no family relationships between any of the above executive officers or directors or any other person nominated or chosen to become an executive officer or a director. Pursuant to the terms of the employment agreement between us and Mr. Joyce, so long as the employment agreement remains in effect, Mr. Joyce will be nominated to the Board of Directors as part of management’s slate of directors. Additionally, pursuant to the terms of a securities purchase agreement, dated July 31, 2007, between us and Vicis, so long as Vicis’ fully diluted ownership of the company is 10% or greater, Vicis is entitled to designate one member to our Board of Directors.

Board of Directors

Our board of directors currently consists of six directors. All directors hold office until the next annual meeting of stockholders. At each annual meeting of stockholders, the successors to directors whose terms then expire are elected to serve from the time of election and qualification until the next annual meeting following election.

Director Independence

Our board of directors has determined that four of our six directors are independent directors within the meaning of the independent director guidelines of the NASDAQ Listing Rules. The independent directors are Messrs. Pierce, Higgins and Widland and Ms. Scarito.

Board Committees

Our board of directors has established an audit committee, a compensation committee and a nominating and corporate governance committee, with each comprised of independent directors. Our board of directors has also established a finance committee. Each committee operates under a charter that has been approved by our board of directors. Copies of our committee charters are available, without charge, upon request in writing to Ambient Corporation, 7 Wells Avenue, Newton, Massachusetts 02459, Attn: Secretary and are posted on the investor relations section of our website, which is located at www.ambientcorp.com. The inclusion of our website address in this prospectus does not include or incorporate by reference the information on our website into this prospectus.

Audit Committee

The members of our audit committee are Messrs. Higgins and Pierce and Ms. Scarito. Mr. Higgins is the chair of the audit committee and is also an “audit committee financial expert,” as defined in applicable SEC rules. The audit committee’s responsibilities include the following:

	●	appointing, approving the compensation of, and assessing the independence of our independent registered public accounting firm;
	●	overseeing the work of our independent registered public accounting firm, including through the receipt and consideration of reports from such firm;
	●	reviewing and discussing with management and the independent registered public accounting firm our annual and quarterly financial statements and related disclosures;
	●	monitoring our internal control over financial reporting, disclosure controls and procedures and code of business conduct and ethics;
	●	discussing our risk management policies;
	●	establishing policies regarding hiring employees from the independent registered public accounting firm and procedures for the receipt and retention of accounting related complaints and concerns;
	●	meeting independently with our independent registered public accounting firm and management;
	●	reviewing and approving or ratifying any related person transactions; and
	●	preparing the audit committee report required by SEC rules.

Our audit committee must approve in advance audit and non-audit services, other than de minimis non-audit services, to be provided to us by our independent registered public accounting firm.

Compensation Committee

The members of our compensation committee are Mr. Widland and Ms. Scarito. Mr. Widland is the chair of the compensation committee. The compensation committee’s responsibilities include the following:

	●	reviewing and approving, or making recommendations to our board with respect to the compensation of our executive officers;
	●	overseeing an evaluation of our senior executives;
	●	reviewing and making recommendations to our board with respect to cash and equity incentive plans;
	●	administering our equity incentive plans;
	●	reviewing and making recommendations to our board with respect to director compensation;
	●	reviewing and discussing annually with management our “Compensation Discussion and Analysis” disclosure as and when required by SEC rules; and
	●	preparing the annual compensation committee report required by SEC rules.

Nominating and Corporate Governance Committee

The members of our nominating and corporate governance committee are Messrs. Pierce and Higgins. Mr. Pierce is the chair of the nominating and corporate governance committee. The nominating and corporate governance committee’s responsibilities include the following:

	●	identifying individuals qualified to become members of our board;
	●	recommending to our board the persons to be nominated for election as directors and to each of our board’s committees;
	●	reviewing and making recommendations to our board with respect to management succession planning;
	●	developing and recommending to our board corporate governance principles; and
	●	overseeing an annual evaluation of our board.

Finance Committee

The members of our finance committee are Mr. Joyce and Mr. Stastney. Mr. Stastney is the chair of the finance committee. The finance committee’s responsibilities include the following:

	●	reviewing the finance policies and strategies used by our company to achieve our objectives, including the performance of, and risk relating to, such policies and strategies;
	●	reviewing the investment policies and strategies used by our company to achieve our objectives, including the performance of, and risk relating to, such policies and strategies; and
	●	considering both the ongoing financing needs of our company and alternative financing mechanisms available to our company, as well as, making recommendations to the board of directors regarding the implementation of appropriate financing mechanisms.

Our board of directors may from time to time establish other committees.

Code of Business Conduct and Ethics

Our board of directors has adopted a written code of business conduct and ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. Copies of our code of business conduct and ethics are available, without charge, upon request in writing to Ambient Corporation, 7 Wells Avenue, Newton, Massachusetts 02459, Attn: Secretary and are posted on the investor relations section of our website, which is located at www.ambientcorp.com. The inclusion of our website address in this prospectus does not include or incorporate by reference the information on our website into this prospectus. We also intend to disclose any amendments to the Code of Business Conduct and Ethics, or any waivers of its requirements, on our website.

Director Compensation

We paid each independent director $15,000 per annum for service on our Board of Directors in 2011. In addition, the Chairman of the Audit Committee received $11,000, and the Chairman of the Compensation Committee received $4,000.

The following table summarizes data concerning the compensation of our non-employee directors for the year ended December 31, 2011.

	Fees Earned or		Option
	Paid in Cash		Awards			Total
Director Name	($)		($)(1)			($)

Michael L. Widland		19,000		329,802	(2)		348,802
D. Howard Pierce		15,000		329,802	(2)		344,802
Thomas Michael Higgins		26,000		329,802	(2)		355,802
Francesca E. Scarito		3,750		406,120	(2)(3)		409,870
Shad L. Stastney		—		—			—

_____________

(1)	Amounts in this column reflect the aggregate grant date fair value computed in accordance with FASB ASC 718 with respect to stock options granted during 2011 under our 2002 Non-Employee Directors Stock Option Plan. The assumptions used to calculate the fair value of stock options granted are set forth in the notes to our financial statements, which are included in this Annual Report on Form 10K.
(2)	Represents the grant date fair value of 90,000 stock options, 30,000 of which were granted at an exercise price of $6.30, 30,000 of which were granted at an exercise price of $6.75 and 30,000 of which were granted at an exercise price of $7.25.
(3)	Ms. Scarito received 20,000 stock options upon her appointment to the Board of Directors at an exercise price of $5.83.

Compensation Committee Interlocks and Insider Participation

During 2011, our Compensation Committee consisted of Mr.Widland. In July of 2011, Ms. Scarito joined our Compensation Committee. Mr. Widland and Ms. Scarito have not at any time in the last year been one of our officers or employees; however, Mr. Widland is a partner of Shipman & Goodwin LLP, a law firm which provides legal services to our company from time to time. Please see “Certain Relationships and Related Party Transactions” for more information about our relationship with Shipman & Goodwin LLP. None of our executive officers has served as a member of the Board of Directors, or as a member of the compensation or similar committee, of any entity that has one or more executive officers who served on our Board of Directors or Compensation Committee during the year ended December 31, 2011.

EXECUTIVE COMPENSATION

The following table sets forth the total compensation received for services rendered in all capacities to our company for the last three fiscal years, which was awarded to, earned by, or paid to our Chief Executive Officer, Chief Financial Officer and each of our other most highly compensated executive officer whose total compensation exceeded $100,000 during 2011, which we refer to collectively as our "Named Executiv Officers."

SUMMARY COMPENSATION TABLE

		Salary		Bonus		Option Awards		Other Compensation
Name and Principal Position	Year	($)		($)		($)(1)		($)(3)	Total ($)

John J. Joyce,	2011		380,956		150,000		1,600,429	35,894		2,167,279
Chairman of the Board, Chief Executive Officer, President and Director	2010		341,419		60,000		1,165,280	31,481		1,598,180
	2009		330,602		50,000		148,890	30,767		560,259

Ramadas Rao,	2011		278,231		120,000		1,600,429	11,500		2,010,160
Chief Technology Officer and Senior Vice President	2010		250,000		50,000		1,059,345	9,865		1,369,210
	2009		241,170		50,000		148,890	8,135		448,195

Mark L. Fidler, (2)	2011		132,692		40,000		535,881	—		708,573
Chief Financial Officer, Treasurer and Vice President

__________

(1)	Amounts in this column reflect the aggregate grant date fair value computed in accordance with FASB ASC 718 with respect to employee stock options granted under our 2000 Equity Incentive Plan. The assumptions used to calculate the fair value of stock option grant are set forth in Note 8 (Stock Based Compensation) to our financial statements, which are included in this Annual Report on Form 10-K.
(2)	Mark L. Fidler joined us as our Principal Financial Officer and Vice President in June 2011 and became our Chief Financial Officer effective as of August 4, 2011. Mr. Fidler is also our Treasurer.
(3)	Represents the Company’s matching contribution to the Company’s Simple IRA Plan and, for John J. Joyce, three weeks paid vacation time, the payout of which is not generally available to our salaried employees.

Grants of Plan-Based Awards for Year Ended December 31, 2011

The following table sets forth information on grants of plan-based awards in 2011 to our Named Executive Officers.

Name	Grant Date	All Other Stock Awards: Number of Shares of Stock or Units (#)		Grant Date/Fair Value of Stock and Option Awards ($)

John J. Joyce,	12/20/2011		340,000		1,600,429
Chairman of the Board, Chief Executive Officer, President and Director
Ramdas Rao,	12/20/2011		340,000		1,600,429
Chief Technology Officer and Senior Vice President
Mark L. Fidler,	6/20/2011		20,000		144,496
Chief Financial Officer, Treasurer and Vice President	8/4/2011		30,000		250,171
	12/20/2011		30,000		141,214

Outstanding Equity Awards at December 31, 2011

The following table sets forth information concerning equity awards held by each of our Named Executive Officers as of December 31, 2011.

Name	Number of Securities Underlying Options (#) Exercisable		Number of Securities Underlying Options (#) Unexercisable		Option Exercise Price ($)		Option Expiration Date

John J. Joyce,		3,750			$	10.00	9/11/2012
Chairman of the Board, Chief Executive Officer, President and Director		10,000			$	20.00	1/26/2014
		5,000			$	30.00	7/20/2014
		5,000			$	50.00	7/20/2014
		25,000			$	4.50	11/15/2017
		45,000			$	3.50	1/13/2019
		82,500		27,500	$	12.00	10/18/2020
		113,334			$	6.30	12/20/2021
				113,333	$	6.75	12/20/2021
				113,333	$	7.25	12/20/2021

Ramadas Rao,		10,000			$	20.00	1/15/2012
Chief Technology Officer and Senior Vice President		2,000			$	20.00	9/11/2012
		8,000			$	20.00	1/26/2014
		3,750			$	20.00	8/11/2014
		3,750			$	20.00	8/11/2014
		10,000			$	4.50	11/15/2017
		45,000			$	3.50	1/13/2019
		75,000		25,000	$	12.00	10/18/2020
		113,334			$	6.30	12/20/2021
				113,333	$	6.75	12/20/2021
				113,333	$	7.25	12/20/2021

Mark L. Fidler		5,000		15,000	$	7.50	6/22/2021
Chief Financial Officer, Treasurer and Vice President		5,000		25,000	$	10.40	8/4/2021
		10,000			$	6.30	12/20/2021
				10,000	$	6.75	12/20/2021
				10,000	$	7.25	12/20/2021

Option Exercises and Stock Vested in 2011

None of our Named Executive Officers acquired shares upon exercise of options, or had any stock awards vest, during 2011.

Employment Agreements

We and John J. Joyce entered into an amended and restated employment agreement dated as of December 30, 2008 pursuant to which Mr. Joyce serves as our Chief Executive Officer. Under the agreement, Mr. Joyce is entitled to be paid an annual salary, which in 2011 was $379,500, subject to an annual review and adjustments. By its terms, the agreement provided for an initial term ending December 31, 2010. After expiration of the initial term, the agreement automatically renews for successive two-year terms unless terminated by us upon written notice given not less than 90 days prior to the expiration of the then-current term. As no such notice has been given, the agreement remains in effect through December 31, 2012. The agreement also contains certain provisions for early termination, including in the event of a change in control, which may result in a severance payment equal to two years of base salary then in effect and the continuation of certain benefits. These severance benefits are discussed in more detail below under “Potential Payments upon Change of Control or Termination following a Change of Control.”

We and Ramdas Rao entered into an amended and restated employment agreement dated as of June 2, 2008, pursuant to which Mr. Rao serves as our Senior Vice President and Chief Technology Officer. Under the agreement for 2011, Mr. Rao was entitled to be paid an annual salary of $250,000, which was adjusted to $280,000 as of June 1, 2011. The employment agreement had an initial term that extended through December 31, 2009, subject to renewal for successive one-year terms unless either party gives notice of that party’s election to not renew to the other at least 60 days prior to the expiration of the then-current term. The agreement also contains certain provisions for early termination, which may result in a severance payment equal to one year of base salary then in effect. These severance benefits are discussed in more detail below under “Potential Payments upon Change of Control or Termination following a Change of Control.”

Mark L. Fidler joined us as our Principal Financial Officer and Vice President in June 2011 and became our Chief Financial Officer effective as of August 4, 2011. Mr. Fidler is also our Treasurer. Mr. Fidler receives an annual salary of $250,000, and he received a signing bonus of $12,500. We also granted to Mr. Fidler a stock option to purchase 20,000 shares of common stock under our 2000 Equity Incentive Plan at an exercise price of $7.50 per share, which options will vest in equal installments of 1,667 shares at the end of each 90 day period, with the first installment vesting on September 27, 2011. When Mr. Fidler became Chief Financial Officer, we entered into an employment agreement with Mr. Fidler, paid him an additional $12,500 bonus and granted him an additional stock option to purchase 30,000 shares of common stock at an exercise price of $10.40 per share, which options will vest in equal installments of 2,500 shares at the end of each 90 day period, with the first installment vesting on October 31, 2011. The agreement also contains certain provisions for early termination, which may result in a severance payment equal to one year of base salary then in effect.

Each of these agreements includes certain confidentiality and non-compete provisions that prohibit the executive from competing with us for one year, or soliciting our employees for one year, following the termination of his employment.

Potential Payments upon Change of Control or Termination following a Change of Control

Automatic Acceleration of Vesting Following a Change of Control. The following table summarizes the intrinsic value (that is, the value based upon our closing stock price on December 31, 2011 of $4.63, less any applicable exercise price) of stock options of our Named Executive Officers that would become exercisable or vested as a result of a change of control as of December 31, 2011:

	Value of Unvested Stock Options ($)	280G exciseTax and Gross-up Payment($)		Total Payments and Value of Equity Awards ($)
John J. Joyce	—		—	—
Ramdas Rao	—		—	—
Mark L Fidler	—		—	—

Automatic Acceleration of Vesting upon an Involuntary Termination Following a Change of Control. Assuming the employment of our Named Executive Officers was terminated involuntarily and without cause, or such officers resigned with good reason, during the 12 months following a change of control occurring on December 31, 2011, in accordance with the terms of the employment agreements with the Named Executive Officers, our Named Executive Officers would be entitled to cash payments in the amounts set forth opposite their names in the below table, subject to any deferrals required under Section 409A of the Internal Revenue Code of 1986, as amended, or the Code, as well as acceleration of vesting for outstanding equity awards, as set forth in the below table. The following table summarizes the value of compensation and benefits payable and intrinsic value (that is, the value based upon our closing stock price on December 31, 2011 of $4.63, less any applicable exercise price) of stock options that would become exercisable or vested as a result of a termination occurring immediately following a change of control as of December 31, 2010.

											Total
							Accrued		Value of		Payments and
					Continuation		Vacation		Unvested		Value of
	Base Salary		Bonus		of Benefits		Pay		Stock Options		Equity Awards
	($)		($)		($)		($)		($)		($)

John J. Joyce, Chairman of the Board, Chief Executive Officer, President and Director		759,000		—		64,220		14,596		—		837,816
Ramdas Rao, Chief Technology Officer and Senior Vice President		280,000		—		14,813		2,714		—		297,527
Mark L. Fidler, Chief Financial Officer, Treasurer and Vice President		250,000		—		14,813		4,808		—		269,621

Risk Assessment of Compensation Policies and Practices

Our board of directors is responsible for reviewing our policies and practices with respect to risk assessment and risk management. In certain circumstances, board committees assist our board of directors in fulfilling its oversight role in certain areas of risk. For example, pursuant to its charter, the audit committee reviews our policies with respect to risk assessment and risk management associated with the accumulation, reporting and disclosure of our quarterly and annual historical financial information.

We have assessed the compensation policies and practices with respect to our employees, including our executive officers, and have concluded that they do not create risks that are reasonably likely to have a material adverse effect on our company. We will continue to monitor our compensation policies and practices to determine whether the incentives they create meet our risk management objectives.

2000 Equity Incentive Plan

The following is a summary of certain material terms of the 2000 Equity Incentive Plan:

Plan Administration. The 2000 Equity Incentive Plan is administered by our board of directors or, at the discretion of the board of directors, by a committee composed of at least one member of the board of directors. The compensation committee of the board of directors administers the 2000 Equity Incentive Plan. The compensation committee is authorized, among other things, to construe, interpret and implement the provisions of the 2000 Equity Incentive Plan, to select the key employees to whom awards will be granted, to determine the terms and conditions of such awards and to make all other determinations deemed necessary or advisable for the administration of the 2000 Equity Incentive Plan.

Shares Available. The aggregate number of shares of common stock available for issuance, subject to adjustment as described below, under the 2000 Equity Incentive Plan is 2,750,000. Such shares may be authorized and unissued shares or treasury shares. Shares reserved for issuance for grants under the 2000 Equity Incentive Plan represent approximately 11.1% of our company’s issued and outstanding common stock as of June 30, 2011. Together with the shares reserved for issuance under the 2002 Non-Employee Directors Stock Option Plan described below, the shares reserved for issuance under these plans will represent approximately 14.3% of our company’s outstanding common stock as of June 30, 2011. If any shares of common stock subject to an award are forfeited or an award is settled in cash or otherwise terminates for any reason whatsoever without an actual distribution of shares, the shares subject to such award will again be available for awards. If any performance units awarded under the 2000 Equity Incentive Plan are forfeited or canceled, the performance units will again be available for awards. If the compensation committee determines that any stock dividend, recapitalization, split, reorganization, merger, consolidation, combination, repurchase or other similar corporate transaction or event, affects the common stock or the book value of our company such that an adjustment is appropriate in order to prevent dilution or enlargement of the rights of participants, then the compensation committee shall adjust any or all of (i) the number and kind of shares of common stock that may thereafter be issued in connection with awards, (ii) the number and kind of shares of common stock issuable in respect of outstanding awards, (iii) the aggregate number and kind of shares of common stock available, (iv) the number of performance units which may thereafter be granted and the book value of our company with respect to outstanding performance units, and (v) the exercise price, grant price or purchase price relating to any award. If deemed appropriate, the compensation committee may also provide for cash payments relating to outstanding awards; provided, however, in each case that no adjustment shall be made which would cause the plan to violate Section 422(b)(1) of the Code with respect to incentive stock options or would adversely affect the status of a performance-based award as “performance based compensation” under Section 162(m) of the Code. The compensation committee may also adjust performance conditions and other terms of awards in response to unusual or nonrecurring events or to changes in applicable laws, regulations or accounting principles, except to the extent that such adjustment would adversely affect the status of any outstanding performance-based awards as “performance-based compensation” under Section 162(m) of the Code.

Eligibility. Persons eligible to participate in the 2000 Equity Incentive Plan include all key employees and consultants of our company and its subsidiaries, including our Named Executive Officers and other senior management as determined by the compensation committee.

Awards. The 2000 Equity Incentive Plan is designed to give the compensation committee the maximum flexibility in providing incentive compensation to key employees and consultants. The 2000 Equity Incentive Plan provides for the grant of incentive stock options (which may no longer be granted under the plan since it was established more than ten years ago), nonqualified stock options, stock appreciation rights, restricted stock, bonus stock, awards in lieu of cash obligations, other stock-based awards and performance units. The 2000 Equity Incentive Plan also permits cash payments either as a separate award or as a supplement to a stock-based award, and for the income and employment taxes imposed on a participant in respect of any award.

Stock Options and Stock Appreciation Rights. The compensation committee is currently authorized to grant nonqualified stock options. The compensation committee can also grant stock appreciation rights entitling the participant to receive the excess of the fair market value of a share of common stock on the date of exercise over the grant price of the SAR. The exercise price per share of common stock subject to an option and the grant price of an SAR are determined by the compensation committee, provided that the exercise price of an incentive stock option or SAR may not be less than the fair market value (110% of the fair market value in the case of an incentive stock option granted to a 10% stockholder) of the common stock on the date of grant. However, the 2000 Equity Incentive Plan also allows the compensation committee to grant an option, an SAR or other award allowing the purchase of common stock at an exercise price or grant price less than fair market value when it is granted in substitution for some other award or retroactively in tandem with an outstanding award. In those cases, the exercise or grant price may be the fair market value at that date, at the date of the earlier award or at that date reduced to reflect the fair market value of the award required to be surrendered as a condition to the receipt of the substitute award. The terms of each option or SAR, the times at which each option or SAR will be exercisable, and provisions requiring forfeiture of unexercised options or SARs and relating to exercisability or following termination of employment will be fixed by the compensation committee. However, no incentive stock option or SAR granted in tandem will have a term exceeding ten years (or shorter period applicable under Section 422 of the Code). Options may be exercised by payment of the exercise price in cash or in common stock, outstanding awards or other property (including notes or obligations to make payment on a deferred basis, or through “cashless exercises”) having a fair market value equal to the exercise price, as the compensation committee may determine from time to time. The compensation committee also determines the methods of exercise and settlement and certain other terms of the SARs.

Restricted Stock. The 2000 Equity Incentive Plan also authorizes the compensation committee to grant restricted stock. Restricted stock is an award of shares of common stock which may not be disposed of by participants and which may be forfeited in the event of certain terminations of employment or certain other events prior to the end of a restriction period established by the compensation committee. Such an award entitles the participant to all of the rights of a stockholder of our company, including the right to vote the shares and the right to receive any dividends thereon, unless otherwise determined by the compensation committee.

Other Stock-Based Awards, Bonus Stock and Awards in lieu of Cash Obligations. In order to enable us to respond to business and economic developments and trends in executive compensation practices, the 2000 Equity Incentive Plan authorizes the compensation committee to grant awards that are denominated or payable in, or valued in whole or in part by reference to the value of, our common stock. The compensation committee will determine the terms and conditions of such awards, including consideration to be paid to exercise awards in the nature of purchase rights, the period during which awards will be outstanding and forfeiture conditions and restrictions on awards. In addition, the compensation committee is authorized to grant shares as a bonus, free of restrictions, or to grant shares or other awards in lieu of our obligations to pay cash or deliver other property under other plans or compensatory arrangements, subject to such terms as the compensation committee may specify.

Cash Payments. The compensation committee may grant the right to receive cash payments whether as a separate award or as a supplement to any stock-based awards. Also, to encourage participants to retain awards payable in stock by providing a source of cash sufficient to pay the income and employment taxes imposed as a result of a payment pursuant to, or the exercise or vesting of, any award, the 2000 Equity Incentive Plan authorizes the compensation committee to grant a tax bonus in respect of any award.

Performance Units. The compensation committee is also authorized to grant performance units. A performance unit is a right to receive a payment in cash equal to the increase in the book value of our company if specified performance goals during a specified time period are met. The compensation committee has the discretion to establish the performance goals and the performance periods relating to each performance unit. A performance goal is a goal expressed in terms of growth in book value, earnings per share, return on equity or any other financial or other measurement selected by the compensation committee, in its discretion, and may relate to the operations of our company as a whole or any subsidiary, division or department, and the performance periods may be of such length as the compensation committee may select. Neither the performance goals nor the performance periods need be identical for all performance units awarded at any time or from time to time.

Performance-Based Awards. The compensation committee may grant awards pursuant to the 2000 Equity Incentive Plan to a participant who, in the year of grant, may be among our Chief Executive Officer and the two other most highly compensated executive officers which are intended to qualify as a performance-based award. If the compensation committee grants an award as a performance-based award, the right to receive payment of such award, other than stock options and SARs granted at not less than fair market value on the date of grant, will be conditional upon the achievement of performance goals established by the compensation committee in writing at the time such performance-based award is granted. Such performance goals may vary from participant to participant and performance-based award to performance-based award. The goals will be based upon (i) the attainment of specific amounts of, or increases in, one or more of the following, any of which may be measured either in absolute terms or as compared to another company or companies: revenue, earnings, cash flow, net worth, book value, stockholder’s equity, financial return ratios, market performance or total stockholder return, and/or (ii) the completion of certain business or capital transactions. Before any performance-based award is paid, the compensation committee will certify in writing that the performance goals applicable to the performance-based award were in fact satisfied.

Other Terms of Awards. The maximum amount that may be granted as performance-based awards to any participant in any calendar year shall not exceed (i) 500,000 performance units, (ii) a tax bonus payable with respect to the stock-based awards and performance units and (iii) cash payments (other than tax bonuses) of $1,000,000. The compensation committee has the discretion to grant an award to a participant who may be a Covered Employee which is not a performance-based award.

In the discretion of the compensation committee, awards may be settled in cash, common stock, other awards or other property. The compensation committee may require or permit participants to defer the distribution of all or part of an award in accordance with such terms and conditions as the compensation committee may establish, including payment of reasonable interest on any amounts deferred under the 2000 Equity Incentive Plan. Awards granted under the 2000 Equity Incentive Plan may not be pledged or otherwise encumbered. Generally, unless the compensation committee determines otherwise, awards are not transferable except by will or by the laws of descent and distribution, or (except in the case of an incentive stock option) otherwise if permitted under Rule 16b-3 of the Exchange Act and by the compensation committee. The 2000 Equity Incentive Plan grants the compensation committee broad discretion in the operation and administration of the 2000 Equity Incentive Plan. This discretion includes the authority to make adjustments in the terms and conditions of, and the criteria included in performance conditions related to, any awards in recognition of unusual or nonrecurring events affecting our company or in response to changes in applicable laws, regulations or accounting principles. However, no such adjustment may adversely affect the status of any outstanding award as a performance-based award. The compensation committee can waive any condition applicable to any award, and may adjust any performance condition specified in connection with any award, if such adjustment is necessary, to take account of a change in our company’s strategy, performance of comparable companies or other circumstances. However no adjustment may adversely affect the status of any outstanding award as a performance-based award. Awards under the 2000 Equity Incentive Plan generally will be granted for no consideration other than services. The compensation committee may, however, grant awards alone, in addition to, in tandem with, or in substitution for, any other award under the 2000 Equity Incentive Plan, other awards under other company plans or other rights to payment from our company. Awards granted in addition to or in tandem with other awards may be granted either at the same time or at different times. If an award is granted in substitution for another award, the participant must surrender such other award in consideration for the grant of the new award.

Change of Control. In the event of a change of control of the company, all awards granted under the 2000 Equity Incentive Plan (including performance-based awards) that are outstanding and not yet vested or exercisable or which are subject to restrictions, will become immediately 100% vested in each participant or will be free of any restrictions, and will be exercisable for the remaining duration of the award. All awards that are exercisable as of the effective date of the change of control will remain exercisable for the remaining duration of the award. Under the 2000 Equity Incentive Plan, a change of control occurs upon any of the following events: (i) the acquisition, in one or more transactions, of beneficial ownership by any person or group (other than a trustee or other fiduciary holding securities under an employee benefit plan of our company or a subsidiary), of any securities of the company such that, as a result of such acquisition, such person or group, either (A) beneficially owns, directly or indirectly, more than 50% of our company’s outstanding voting securities entitled to vote on a regular basis for a majority of the members of the board of directors or (B) otherwise has the ability to elect, directly or indirectly, a majority of the members of the board of directors; (ii) a change in the composition of the board of directors such that a majority of the members of the board of directors are not “Continuing Directors” (as defined in the 2000 Equity Incentive Plan); or (iii) our stockholders approve a merger or consolidation of our company with any other corporation, other than a merger or consolidation which would result in the voting securities of our company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity) at least 50% of the total voting power represented by the voting securities of our company or such surviving entity outstanding immediately after such merger or consolidation, or the stockholders of the company approve a plan of complete liquidation of our company or an agreement for the sale or disposition by the company, in one or more transactions, of all or substantially all our company’s assets. The foregoing events will not be deemed to be a change of control if the transactions causing such change are approved in advance by the affirmative vote of at least a majority of the Continuing Directors.

Amendment and Termination. The 2000 Equity Incentive Plan is of indefinite duration, continuing until all shares and performance units reserved therefor have been issued or until terminated by the board of directors. The board of directors may amend, alter, suspend, discontinue or terminate the 2000 Equity Incentive Plan or the compensation committee’s authority to grant awards thereunder without further stockholder approval or the consent of the participants, except stockholder approval must be obtained within one year after the effectiveness of such action if required by law or regulation or under the rules of the securities exchange on which the common stock is then quoted or listed or as otherwise required by Rule 16b-3 under the Exchange Act. Notwithstanding the foregoing, unless approved by the stockholders, no amendment will: (i) change the class of persons eligible to receive awards; (ii) materially increase the benefits accruing to participants under the 2000 Equity Incentive Plan; or (iii) increase the number of shares of common stock subject to the 2000 Equity Incentive Plan.

2002 Non-Employee Directors Stock Option Plan

The following is a summary of certain material terms of the 2002 Non-Employee Directors Stock Option Plan:

Plan Administration. The 2002 Non-Employee Directors Stock Option Plan is administered by the board of directors or, if so determined by our board of directors, by a committee consisting solely of two or more non-employee directors of our company. The body administrating the 2002 Non-Employee Directors Stock Option Plan is referred to as the “Administrative Body.” The Administrative Body is authorized to construe, interpret and implement the provisions of the 2002 Non-Employee Directors Stock Option Plan, to select the non-employee directors to whom awards will be granted, to determine the amount, terms and conditions of such awards and to make all other determinations deemed necessary or advisable for the administration of the 2002 Non-Employee Directors Stock Option Plan. The shares available for grant under the 2002 Non-Employee Directors Stock Option Plan may be authorized and unissued shares or treasury shares. If any shares of common stock subject to an award are forfeited or the award otherwise terminates for any reason whatsoever without an actual distribution of shares, the shares subject to such award will again be available for awards. Only directors not employed by our company or any of its subsidiaries are eligible to participate in the 2002 Non-Employee Directors Stock Option Plan.

Shares Available. The aggregate number of shares of common stock available for issuance, subject to adjustment as described below, under the 2002 Non-Employee Directors Stock Option Plan is 750,000. The number of shares available for issuance under the plan and the number of options and prices at which they are exercisable are subject to adjustment in the case of certain transactions such as mergers, recapitalizations, stock splits or stock dividends.

Awards. Under the 2002 Non-Employee Directors Stock Option Plan, the Administrative Body may issue only non-qualified options. Each option granted under the 2002 Non-Employee Directors Stock Option Plan will, unless earlier terminated as provided in the 2002 Non-Employee Directors Stock Option Plan, expire six years from the date of grant. If a non-employee director ceases to serve as a director of our company, options issued to such a director under the 2002 Non-Employee Directors Stock Option Plan will: (i) in the case of removal for cause, terminate immediately; (ii) in the case of death or disability, terminate two years after the date on which such director ceased to serve; and (iii) in all other the cases (including failure to be renominated or reelected), terminate 12 months after such director ceased to serve. The exercise price of the option will be the fair market value of the common stock on the date of the grant of the option.

Amendment and Termination. The 2002 Non-Employee Directors Stock Option Plan continues in effect through December 31, 2012. The board of directors may amend, alter, suspend, discontinue or terminate the 2002 Non-Employee Directors Stock Option Plan. Notwithstanding the foregoing, any such amendment, alteration, suspension, discontinuation or termination shall be subject to the approval of our company’s stockholders if such approval is required by any applicable law or regulation or any applicable stock exchange rule. Additionally, without the consent of the an affected non-employee director, no amendment, alteration, suspension, discontinuation or termination of the 2002 Non-Employee Directors Stock Option Plan may materially, adversely affect the rights of such non-employee director under any option previously granted.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Director Relationships

We retain the law firm of Shipman & Goodwin LLP, of which Mr. Michael Widland, a non-employee director and chair of the Compensation Committee, is a partner, to perform legal services from time to time. We paid Shipman & Goodwin $57,161 and $394,153 for legal services rendered during 2010 and 2011, respectively.

Mr. Shad Stastney, a director, is a founding partner of Vicis Capital Master Fund, which holds, approximately 84% of our outstanding stock. The shares are held directly by Vicis Capital Master Fund, for which Vicis Capital LLC acts as investment advisor. Vicis Capital LLC may be deemed to beneficially own the shares within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934, as amended, by virtue of the voting and dispositive power over such shares granted by Vicis Capital Master Fund to Vicis Capital LLC. The voting and dispositive power granted to Vicis Capital LLC by Vicis Capital Master Fund may be revoked at any time.

Registration Rights

In connection with the purchase of certain of our securities, we have granted Vicis registration rights for our common stock, including shares which may be issued upon conversion of debentures or exercise of warrants.

These registration rights are set forth in the registration rights agreement, dated July 31, 2007, as amended on November 1, 2007, January 15, 2008, April 23, 2008 and November 21, 2008, and the registration rights agreement dated November 16, 2009, in each case, between us and Vicis and, in some circumstances, in warrants issued by us. The following description of the terms of the registration rights agreements and amendments is intended as a summary only and is qualified in its entirety by reference to the registration rights agreements and amendments filed as exhibits to this Annual Report on Form 10-K.

Demand Registration Rights. At any time after the expiration of the lock-up agreement with Vicis (see “Shares Eligible for Future Sale — Lock-up Agreements”) Vicis may, pursuant to a registration rights agreement dated July 31, 2007, which was amended by a debenture amendment agreement, dated November 21, 2008 between us and Vicis and a registration rights agreement dated November 16, 2009 between us and Vicis, request that we register certain registrable shares, including shares issuable upon conversion of notes and exercise of warrants, for sale under the Securities Act. Pursuant to this agreement, we will be required to file a registration statement covering such registrable securities within 120 days of Vicis’ request.

Piggyback Registration Rights. In the event that we propose to register any of our securities under the Securities Act (except for the registration of securities to be offered pursuant to an employee benefit plan on Form S-8 or pursuant to a registration made on Form S-4 or any successor forms then in effect), we are required to include in these registrations all securities with respect to which we have received written requests for inclusion under our registration rights agreements, subject to certain limitations.

Expenses of Registration. We will pay all registration expenses, other than underwriting discounts and commissions and any transfer taxes related to any registration.

Indemnification. The registration rights agreements contain indemnification provisions pursuant to which we are obligated to indemnify the selling stockholders and any person who might be deemed to control any selling stockholder in the event of violation of securities laws or untrue or alleged untrue statement of material fact attributable to us contained in the registration statement, any prospectus or form of prospectus or in any amendment or supplement thereto. The registration rights agreements require that, as a condition to including their securities in any registration statement filed pursuant to demand or piggyback registration rights, the selling stockholders indemnify us for material misstatements or omissions attributable to them.

Additionally, the holders of certain warrants are entitled to registration rights with respect to the shares of our common stock issuable upon exercise of the warrants. Pursuant to the terms of these warrants, in the event that we propose to register any of our securities under the Securities Act (other than on a registration statement on Form S-4, S-8 or other limited purpose form), we are required, subject to certain limitations, to include in the registration statement all shares of our common stock issuable upon exercise of the warrants with respect to which we have received written requests for inclusion of such shares under our warrants. As of December 31, 2011, an aggregate amount of 1,123,484 shares of our common stock are issuable upon exercise of warrants containing these registration rights

Employment Agreements

We have entered into employment agreements with Messrs. Joyce, Rao and Fidler. See “Executive Compensation — Employment Agreements” for additional information.

Policy for Approval of Related Party Transactions

The charter of our Audit Committee requires it to review our policies and procedures for reviewing and approving or ratifying “related person transactions” and to recommend any changes to our Board of Directors. In accordance with NASDAQ rules, the Audit Committee must conduct appropriate review and oversight of all related person transactions for potential conflict of interest situations on an ongoing basis. The Audit Committee has not adopted policies or procedures for review of, or standards for approval of, these transactions.

STOCK OWNERSHIP OF MANAGEMENT AND CERTAIN BENEFICIAL HOLDERS

The following table sets forth certain information, as of March 23, 2012, concerning the ownership of our common stock by: (a) each person who, to our knowledge, beneficially owned on that date more than 5% of our outstanding common stock; (b) each of our Directors and the Named Executive Officers; and (c) all of our current Directors and executive officers as a group.

Name of Beneficial Owner (1)	Number of Shares Beneficially Owned (2)			Percent of Common Stock (2)
Directors and Executive Officers:

John J. Joyce, Chairman of the Board, Chief Executive Officer, President and Director		298,984	(3)		1.8	%

Ramdas Rao, Chief Technology Officer and Senior Vice President		280,984	(4)		1.7	%

Mark L. Fidler, Chief Financial Officer, Treasurer and Vice President		20,000	(5)		*

Michael Widland, Director		158,933	(6)		*

D. Howard Pierce, Director		157,500	(7)		*

Thomas Higgins, Director		156,500	(8)		*

Francesca E. Scarito, Director		110,000	(9)		*

Shad L. Stastney, Director		––			*

All Directors and executive officers as a group (8 persons) (10)		1,182,901			6.7	%

5% Stockholders:

Vicis Capital Master Fund		14,837,117	(11)		84.7	%

________

* Indicates less than 1%.

(1)

Unless otherwise indicated, the address of each person listed is c/o Ambient Corporation, 7 Wells Avenue, Newton, Massachusetts 02459.

(2)

Beneficial ownership is determined in accordance with the rules of the SEC and generally includes voting or investment power with respect to securities. In accordance with SEC rules, shares of common stock issuable upon the exercise of options or warrants that are currently exercisable or that become exercisable within 60 days following March 23, 2012 are deemed to be beneficially owned by, and outstanding with respect to, the holder of such option or warrant. Except as indicated by footnote, and subject to community property laws where applicable, to our knowledge, each person listed is believed to have sole voting and investment power with respect to all shares of common stock beneficially owned by such person.

(3)	Represents (i) 9,400 shares of common stock, and (ii) 289,584 shares of common stock issuable upon the exercise of vested options issued under our 2000 Equity Incentive Plan. Does not include 254,166 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan.

(4)	Represents (i) 10,150 shares of common stock, and (ii) 270,834 shares of common stock issuable upon the exercise of vested options issued under our 2000 Equity Incentive Plan. Does not include 251,166 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan.
(5)	Represents 20,000 shares of common stock issuable upon exercise of vested options issued under our 2000 Equity Incentive Plan. Does not include 60,000 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan.
(6)	Represents (i) 1,333 shares of common stock, and (ii) 157,600 shares of common stock issuable upon the exercise of vested options issued under our 2000 Equity Incentive Plan. Does not include 10,800 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan.

(7)	Represents (i) 2,000 shares of common stock, and (ii) 155,500 shares of common stock issuable upon the exercise of vested options issued under our 2000 Equity Incentive Plan. Does not include 10,500 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan.
(8)	Represents 156,500 shares of common stock issuable upon exercise of vested options issued under our 2002 Directors Plan. Does not include 9,500 shares of common stock issuable upon exercise of unvested options issued under our 2002 Directors Plan.
(9)	Represents 110,000 shares of common stock issuable upon exercise of vested options issued under our 2002 Directors Plan.
(10)	Represents (i) 22,883 shares of common stock, (ii) 580,418 shares of common stock issuable upon exercise of vested options issued under our 2000 Equity Incentive Plan, and (iii) 579,600 shares of common stock issuable upon exercise of vested options issued under the 2002 Directors Plan. Does not include 565,832 shares of common stock issuable upon exercise of unvested options issued under our 2000 Equity Incentive Plan and 30,800 shares of common stock issuable upon exercise of unvested options issued under our 2002 Directors Plan.
(11)	Represents (i) 13,882,084 shares of common stock, and (ii) 955,033 shares of common stock issuable upon exercise of warrants. All securities are held directly by Vicis Capital Master Fund, for which Vicis Capital LLC acts as investment advisor. Vicis Capital LLC may be deemed to beneficially own shares held by Vicis Capital Master Fund and any shares issuable to Vicis Capital Master Fund upon exercise of the warrants within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934, as amended, by virtue of the voting and dispositive power over such shares granted by Vicis Capital Master Fund to Vicis Capital LLC. The voting and dispositive power granted to Vicis Capital LLC by Vicis Capital Master Fund may be revoked at any time. Vicis Capital LLC disclaims beneficial ownership of any shares reported herein. Shad L. Stastney, a member of our Board of Directors and a founder and principal of Vicis Capital LLC, John Succo and Sky Lucas share voting and dispositive control of these securities. No single natural person can exercise voting or investment power with respect to the securities owed by Vicis Capital Master Fund and investment decisions with respect to these securities are made by a majority of these persons.

SELLING STOCKHOLDERS

Up to 279,650 shares of Common Stock issuable upon exercise of outstanding warrants are being offered under this Prospectus, all of which are being registered for sale for the account of the selling stockholders.

Beneficial ownership is determined in accordance with SEC rules and includes voting or investment power with respect to the securities. However, no selling stockholder may exercise its warrants if such exercise would cause such holder's beneficial ownership of our Common Stock (excluding shares underlying any of their unexercised warrants) to exceed 4.99% of the outstanding shares of Common Stock immediately after the exercise. (If the holder subsequently disposes of some or all of its holdings, it can again exercise its warrant, subject to the same limitation). The table below also includes the number of shares which might be issuable on the occurrence of certain events, such as the accrual of dividends, which have not yet occurred and may not occur.

SELLING STOCKHOLDERS TABLE

The following table sets forth the shares beneficially owned, as of March 23, 2012, by the selling stockholders (as represented to us by the selling stockholders) prior to the offering contemplated by this Prospectus, the number of shares each selling stockholder is offering by this Prospectus and the number of shares which each would own beneficially if all such offered shares are sold. The selling stockholders acquired their beneficial interests in the shares being offered hereby in the private placement described above under the caption "AGREEMENTS WITH THE SELLING STOCKHOLDERS" in which each such selling stockholder advised us that it purchased the relevant securities solely for investment and not with a view to or for resale or distribution of such securities.

SELLING STOCKHOLDER	NUMBER OF SHARES OWNED BEFORE OFFERING		SHARES OFFERED PURSUANT TO THIS PROSPECTUS				COMMON STOCK TO BE BENEFICIALLY OWNED IF ALL SHARES OFFERED HEREUNDER ARE SOLD
	NUMBER OF SHARES OWNED BEFORE OFFERING		SHARES OFFERED PURSUANT TO THIS PROSPECTUS				SHARES		PERCENT

GREGORY DRYER		134,786		134,786	(1	)		––		––
VICIS CAPITAL MASTER FUND		14,687,117		141,200	(2	)		14,545,917		83	%
PAUL KUHNS		3,664		3,664	(1	)		––		––

———————

*	Represents less than 1%

1.	Represents shares of Common Stock issuable upon exercise Placement Agent Warrants. The selling stockholder is an assignee of Kuhns Brothers, Inc. (“Kuhns”), the original stockholder and a registered broker-dealer, which served as a placement agent in the transactions described in the section "DESCRIPTION OF THE AGREEMENTS WITH THE SELLING STOCKHOLDERS." The selling stockholder is an employee of Kuhns. Each of Kuhns and the selling stockholders have advised us that it purchased the securities solely for investment and not with a view to or for resale or distribution of such securities.

Represents shares of Common Stock issuable upon exercise Placement Agent Warrants. The original rights-holders, Kuhns Brothers Inc. (“Kuhns”), John Kuhns (“JK”) and Mary Fellows (“MF”), sold these warrants to Vicis Capital Master Fund (“Vicis Capital”), the Company’s principal stockholder, in privately negotiated transactions. Each of JK and MF are employees of Kuhns. Following the sale, all securities are held directly by Vicis Capital, for which Vicis Capital LLC acts as investment advisor. Vicis Capital LLC may be deemed to beneficially own shares held by Vicis Capital and any shares issuable to Vicis Capital upon exercise of the warrants within the meaning of Rule 13d-3 of the Securities Exchange Act of 1934, as amended, by virtue of the voting and dispositive power over such shares granted by Vicis Capital to Vicis Capital LLC. The voting and dispositive power granted to Vicis Capital LLC by Vicis Capital may be revoked at any time. Vicis Capital LLC disclaims beneficial ownership of any shares reported herein. Shad L. Stastney, a founder and principal of Vicis Capital LLC, John Succo and Sky Lucas share voting and dispositive control of these securities. No single natural person can exercise voting or investment power with respect to the securities owed by Vicis Capital and investment decisions with respect to these securities are made by a majority of these persons.

PLAN OF DISTRIBUTION

The selling stockholders and any of their pledgees, donees, transferees, assignees and successors-in-interest may, from time to time, sell any or all of the shares that are included in the Registration Statement on any stock exchange, market or trading facility on which the shares are traded or in private transactions. These sales may be at market prices prevailing at the time of sale, at prices related to such prevailing market prices or at negotiated prices.

The selling stockholders may use any one or more of the following methods when selling shares:

●	directly as principals;
●	ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers;
●	block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to facilitate the transaction;
●	purchases by a broker-dealer as principal and resale by the broker-dealer for its account;
●	an exchange distribution in accordance with the rules of the applicable exchange;
●	privately negotiated transactions;
●	to cover short sales made in compliance with applicable laws and regulations;
●	broker-dealers may agree with the selling stockholders to sell a specified number of such shares at a stipulated price per share;
●	a combination of any such methods of sale; and
●	any other method permitted pursuant to applicable law.

The selling stockholders may also sell shares under Rule 144 under the Act if available, rather than under this Prospectus.

Broker-dealers engaged by the selling stockholders may arrange for other broker-dealers to participate in sales. Broker-dealers may receive commissions or discounts from the selling stockholders (or, if any broker-dealer acts as an agent for the purchaser of shares, from the purchaser) in amounts to be negotiated. The selling stockholders do not expect these commissions and discounts to exceed what is customary in the types of transactions involved. We are not aware of any definitive selling arrangement at the date of this prospectus between any selling stockholder and any broker-dealer or agent.

Upon our being notified by a selling stockholder that any material arrangement has been entered into with a broker-dealer for the sale of shares through a block trade, special offering, exchange distribution or secondary distribution or a purchase by a broker or dealer, a supplement to this prospectus will be filed by us, if required, pursuant to Rule 424(b) under the Act, disclosing:

●	The name of each such selling stockholder and of the participating broker-dealer(s);
●	The number of shares involved;
●	The price at which such shares were sold;
●	The commissions paid or discounts or concessions allowed to such broker-dealer(s), where applicable;
●	That such broker-dealer(s) did not conduct any investigation to verify the information set out or incorporated by reference in this Prospectus; and
●	Other facts material to the transaction.

The selling stockholders may from time to time pledge or grant a security interest in some or all of the shares owned by them and, if they default in the performance of their secured obligations, the pledgees or secured parties may offer and sell shares from time to time under this Prospectus, or under an amendment to this Prospectus under Rule 424(b)(3) or other applicable provision of the Act amending the list of selling stockholders to include the pledgee, transferee or other successors in interest as selling stockholders under this Prospectus.

The selling stockholders may also transfer the shares in other circumstances, in which case the transferees, pledgees or other successors in interest will be the selling beneficial owners for purposes of this Prospectus.

The selling stockholders and any broker-dealers or agents that are involved in selling the shares may be deemed to be "underwriters" within the meaning of the Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on the resale of the shares purchased by them may be deemed to be underwriting commissions or discounts under the Act. Discounts, concessions, commissions and similar selling expenses, if any, that can be attributed to the sale of securities will be paid by the applicable selling stockholder and/or the purchasers.

If a selling stockholder uses this Prospectus for any sale of the shares, it will be subject to the prospectus delivery requirements of the Act. The selling stockholders will be responsible to comply with the applicable provisions of the Act and the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder, including, without limitation, Regulation M, as applicable to such selling stockholders in connection with resales of their respective shares under this Registration Statement.

We are required to pay all fees and expenses incident to the registration of the shares being offered by the selling stockholders, but we will not receive any proceeds from the sale of the shares except for, upon exercise, the exercise price of options and warrants exercised on a cash basis. We have agreed to indemnify certain selling stockholders against certain losses, claims, damages and liabilities, including liabilities under the Act.

DESCRIPTION OF CAPITAL STOCK

The following description briefly summarizes information about our capital stock. This information does not purport to be complete and is subject to, and qualified in its entirety by reference to, the terms of our restated certificate of incorporation, as amended, and our bylaws, and the applicable provisions of Delaware law, the state in which we are incorporated. We urge you to read our restated certificate of incorporation, as amended, and our bylaws, which are exhibits to the registration statement of which this prospectus forms a part.

Authorized Capital Stock

Our authorized capital stock consists of 100,000,000 shares of common stock, $0.001 par value per share, and 5,000,000 shares of preferred stock, $0.001 par value per share.

As of March 23, 2012, there were 16,587,384 shares of common stock outstanding held by approximately 138 stockholders of record of our common stock. As of March 23, 2012, there were no shares of preferred stock outstanding.

Common Stock

Voting. Except as otherwise required by Delaware law, holders of our common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders. There is no cumulative voting in the election of directors.

Dividend Rights. Dividends or other distributions in cash, securities or other property of our company may be declared from time to time by our board of directors out of assets and funds legally available for dividend payments. To date, we have not paid any dividends on our common stock. See “Dividend Policy.”

Liquidation and Preemptive Rights. In the event of our liquidation, dissolution or winding-up, holders of our common stock are entitled to share equally on a per share basis in all assets remaining after payment or provision of payment of our debts. Holders of our common stock have no conversion, exchange, preemptive or other subscription rights. There are no redemption or sinking fund provisions applicable to our common stock.

Listing. Our common stock is listed on the NASDAQ Capital Market under the symbol “AMBT.”

Transfer Agent and Registrar. The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company, LLC. Its address is 6201 15th Avenue, Brooklyn, New York, 11219, and its telephone number is (718) 921-8200.

Preferred Stock

We have 5,000,000 shares of preferred stock authorized, but we have not designated the rights and preferences of these shares. Our stockholders would have to approve the rights and preferences of any class or series of preferred stock.

Registration Rights

Holders of 15,043,891 shares of common stock outstanding and issuable upon exercise of various warrants are entitled to specific rights to register those shares in the public market. These registration rights are set forth in the registration rights agreement, dated July 31, 2007, as amended on November 1, 2007, January 15, 2008, April 23, 2008 and November 21, 2008, and the registration rights agreement dated November 16, 2009, in each case, between us and Vicis and, in some circumstances, in warrants issued by us. The following description of the terms of the registration rights agreements and amendments is intended as a summary only and is qualified in its entirety by reference to the registration rights agreements and amendments filed as exhibits to the registration statement, of which this prospectus forms a part.

Piggyback Registration Rights. After the completion of this offering, in the event that we propose to register any of our securities under the Securities Act (except for the registration of securities to be offered pursuant to an employee benefit plan on Form S-8 or pursuant to a registration made on Form S-4 or any successor forms then in effect), we are required to include in these registrations all securities with respect to which we have received written requests for inclusion under our registration rights agreements, subject to certain limitations.

Expenses of Registration. We will pay all registration expenses, other than underwriting discounts and commissions and any transfer taxes related to any registration.

Additionally, the holders of certain warrants are entitled to registration rights with respect to the shares of our common stock issuable upon exercise of the warrants. Pursuant to the terms of these warrants, in the event that we propose to register any of our securities under the Securities Act (other than on a registration statement on Form S-4, S-8 or other limited purpose form), we are required, subject to certain limitations, to include in the registration statement all shares of our common stock issuable upon exercise of the warrants with respect to which we have received written requests for inclusion of such shares under our warrants. An aggregate amount of 1,161,807 shares of our common stock are issuable upon exercise of warrants containing these registration rights.

DISCLOSURE OF SEC POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

Pursuant to our certificate of incorporation and by-laws, our officers and directors are indemnified by us to the fullest extent allowed under Delaware law for claims brought against them in their capacities as officers and directors. Indemnification is not allowed if the officer or director does not act in good faith and in a manner reasonably believed to be in our best interest, or if the officer or director had no reasonable cause to believe his conduct was lawful. Accordingly, indemnification may occur for liabilities arising under the Act. Insofar as indemnification for liabilities arising under the Act may be permitted for our directors, officers and controlling persons pursuant to the foregoing provisions or otherwise, we have been advised that in the opinion of the SEC, such indemnification is against public policy as expressed in the act and is, therefore, unenforceable.

LEGAL MATTERS

The validity of the Common Stock offered under this Prospectus will be passed on by Aboudi & Brounstein, Law Offices.

EXPERTS

The financial statements for the years ended December 31, 2011 and December 31, 2010 included in this Prospectus have been so included in reliance on the report of Rotenberg Meril Solomon Bertiger & Guttilla, P.C., independent registered public accounting firm, given on the authority of said firm as experts in auditing and accounting.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. You may read and copy any reports, statements or other information on file at the SEC public reference room in Washington, D.C. You can request copies of those documents, upon payment of a duplicating fee, by writing to the SEC. Copies of such material may be obtained by mail from the Public Reference Room of the SEC at 100 F Street, N.E.,, Washington, D.C. 20549, at prescribed rates. In addition, the SEC maintains a Web site at www.sec.gov containing reports, proxy and information statements and other information regarding registrants that file electronically with the SEC, including us. You may obtain information on the operation of the Public Reference Room by calling the SEC at1-800-SEC-0330.

We have filed with the SEC under the Act a Registration Statement on Form S-1, of which this Prospectus is a part, with respect to the shares offered hereby. This Prospectus, which constitutes a part of the Registration Statement, does not contain all of the information set forth in the Registration Statement, certain items of which are contained in exhibits and schedules as permitted by the rules and regulations of the SEC. You can obtain a copy of the Registration Statement from the SEC at the address listed above or from the SEC's Internet website at www.sec.gov.

Statements made in this Prospectus as to the contents of any contract, agreement or other document referred to herein are not necessarily complete. With respect to each contract, agreement or other document filed as an exhibit to the Registration Statement or in a filing incorporated by reference herein or otherwise, reference is made to the exhibit for a more complete description of the matters involved, and each statement shall be deemed qualified in its entirety by this reference.

Prospective investors may rely on the information contained in this Prospectus. Neither we nor the selling stockholders have authorized anyone to provide prospective investors with information different from that contained in this Prospectus. The information in this Prospectus is correct only as of the date of this Prospectus, regardless of the time delivery of this Prospectus or any sale of these securities.

AMBIENT CORPORATION

up to 279,650 shares of Common Stock

PROSPECTUS

March 29, 2012

F-1

AMBIENT CORPORATION

INDEX TO FINANCIAL STATEMENTS

	Page

Report of Independent Registered Accounting Firm		F-3

Financial Statements

Balance Sheets		F-4

Statements of Operations		F-5

Statement of Changes in Stockholders’ Equity (Deficit)		F-6

Statements of Cash Flows		F-7

Notes to Financial Statements		F-8

F-2

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Ambient Corporation

We have audited the accompanying balance sheets of Ambient Corporation (the “Company”) as of December 31, 2010 and 2011, and the related statements of operations, changes in stockholders’ equity (deficit) and cash flows for the years ended December 31, 2009, 2010 and 2011. The financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2010 and 2011 and the results of their operations and cash flows for the years ended December 31, 2009, 2010 and 2011in conformity with accounting principles generally accepted in the United States of America.

/s/ ROTENBERG MERIL SOLOMON BERTIGER & GUTTILLA, P.C.

ROTENBERG MERIL SOLOMON BERTIGER & GUTTILLA, P.C.

Saddle Brook, New Jersey

March 6, 2012

F-3

AMBIENT CORPORATION

BALANCE SHEETS

(in thousands, except share data)

	December 31,
	2010			2011
Assets
Current assets:
Cash and cash equivalents	$	6,987		$	17,965
Accounts receivable		1,731			284
Inventory		834			1,460
Prepaid expenses and other current assets		276			527
Total current assets		9,828			20,236

Property and equipment, net		745			1,249
Deferred finance charges		-			389

Total assets	$	10,573		$	21,874
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable	$	3,608		$	3,920
Accrued expenses and other current liabilities (including related party interest of $244 and $0, respectively)		633			714
Deferred revenue		-			119
Accrued warranty		-			115
Income taxes payable		-			41
Capital lease obligation		10			-
Total current liabilities		4,251			4,909
Non-current liabilities
Deferred rent		186			99

Total liabilities		4,437			5,008

Commitments

Stockholders' Equity:
Common stock, $0.001 par value;
20,000,000 and 100,000,000 shares authorized;
16,493,764 and 16,567,384 shares issued; and
16,483,764 and 16,557,384 shares outstanding, respectively		16			17
Additional paid-in capital		149,748			155,707
Accumulated deficit		(143,428	)		(138,658	)
Less: treasury stock; 10,000 shares at cost		(200	)		(200	)
Total stockholders' equity		6,136			16,866

Total liabilities and stockholders' equity	$	10,573		$	21,874

See Notes to Financial Statements.

F-4

AMBIENT CORPORATION

STATEMENTS OF OPERATIONS

(in thousands, except per share data)

	For the Years Ended December 31,
	2009			2010			2011

Total revenue	$	2,193		$	20,358		$	62,306
Cost of goods sold		1,836			12,023			35,490
Gross profit		357			8,335			26,816

Operating expenses:
Research and development expenses		4,946			6,314			12,223
Selling, general and administrative expenses		4,662			5,239			9,638
Total operating expenses		9,608			11,553			21,861

Operating (loss) income		(9,251	)		(3,218	)		4,955

Interest (expense) income, net		(4,963	)		(214	)		19
Other (expense) income, net		(32	)		246			-
Total other income		(4,995	)		32			19

(Loss) income before taxes		(14,246	)		(3,186	)		4,974

Provision for income taxes		-			-			204

Net (loss) income	$	(14,246	)	$	(3,186	)	$	4,770

Net (loss) income per share (basic)	$	(1.81	)	$	(0.21	)	$	0.29
Net (loss) income per share (diluted)	$	(1.81	)	$	(0.21	)	$	0.28

Weighted average shares used in computing basic net (loss) income per share		7,891			15,385			16,515
Weighted average shares used in computing diluted net (loss) income per share		7,891			15,385			16,905

See Notes to Financial Statements.

F-5

AMBIENT CORPORATION

STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT)

(in thousands, except share data)

					Additional Paid-in Capital
	Common Stock							Treasury Stock			Accumulated Deficit
	Shares		Amount					Treasury Stock			Accumulated Deficit			Total
Balance - January 1, 2009		7,189,808	$	7	$	133,643		$	(200	)	$	(125,996	)	$	7,454

Common stock issued upon exercise of warrants		116,422				952									952
Common stock issued upon exercise of options		7,500				24									24
Common stock issued upon conversion of convertible debt		1,666,667		2		2,498									2,500
Remeasurement of beneficial conversion feature of convertible promissory note						(8,333	)								(8,333	)
Warrant repricing						1,147									1,147
Stock-based compensation expense						967									967
Net loss												(14,246	)		(14,246	)
Balance - December 31, 2009		8,980,397	$	9	$	130,898		$	(200	)	$	(140,242	)	$	(9,535	)

Common stock issued upon exercise of warrants		28,590				100									100
Common stock issued upon exercise of options		8,110				32									32
Proceeds from sale of common stock		800,000				8,000									8,000
Common stock issued upon conversion of convertible debt		6,666,667		7		9,993									10,000
Stock-based compensation expense						725									725
Net loss												(3,186	)		(3,186	)
Balance - December 31, 2010		16,483,764	$	16	$	149,748		$	(200	)	$	(143,428	)	$	6,136

Common stock issued upon exercise of warrants		68,538		1		239				��					240
Common stock issued upon exercise of options		5,082				30									30
Stock-based compensation expense						5,690									5,690
Net income												4,770			4,770
Balance - December 31, 2011		16,557,384	$	17	$	155,707		$	(200	)	$	(138,658	)	$	16,866

See Notes to Financial Statements.

F-6

AMBIENT CORPORATION

STATEMENTS OF CASH FLOWS

(in thousands)

	For the Years Ended December 31,
	2009			2010			2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$	(14,246	)	$	(3,186	)	$	4,770
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization		303			380			458
Amortization of beneficial conversion feature of convertible debt		3,228			184			-
Financing costs related to warrant repricing		1,147			-			-
Stock-based compensation		967			725			5,690
Gain on conversion and extinguishment of debt		-			(252	)		-
Loss on disposal of fixed assets		32			6			-
Changes in operating assets and liabilities:
Accounts receivable		430			(492	)		1,447
Inventory		(263	)		(473	)		(626	)
Prepaid expenses and other current assets		(28	)		(74	)		(251	)
Accounts payable		682			1,592			312
Deferred rent		85			101			(87	)
Accrued warranty		-			-			115
Accrued expenses and other current liabilities		(108	)		56			81
Income taxes payable		-			-			41
Deferred revenue		51			(159	)		119
Net cash (used in) provided by operating activities		(7,720	)		(1,592	)		12,069

CASH FLOWS FROM INVESTING ACTIVITIES
Redemption of marketable securities		125			-			-
Purchases of property and equipment		(394	)		(527	)		(962	)
Net cash used in investing activities		(269	)		(527	)		(962	)

CASH FLOWS FROM FINANCING ACTIVITES
Proceeds from issuance of common stock		976			8,000			-
Deferred finance charges		-			-			(389	)
Proceeds from exercise of warrants		-			100			240
Proceeds from exercise of stock options		-			32			30
Payments of capitalized lease obligations		(12	)		(13	)		(10	)
Net cash provided by (used in) financing activities		964			8,119			(129	)

(DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS		(7,025	)		6,000			10,978

CASH AND CASH EQUIVALENTS - BEGINNING OF YEAR		8,012			987			6,987

CASH AND CASH EQUIVALENTS - END OF YEAR	$	987		$	6,987		$	17,965

Non-cash financing and investing activities:
Issuance of common stock in connection with conversion of debt	$	-		$	10,000		$	-

Supplemental disclosures of cash flow information:
Interest paid	$	675		$	226		$	246
Income taxes paid	$	-		$	-		$	163

See Notes to Financial Statements.

F-7

AMBIENT CORPORATION

NOTES TO FINANCIAL STATEMENTS

NOTE 1 - DESCRIPTION OF BUSINESS

Ambient Corporation (“Ambient,” the “Company,” “we or “us”) is a Delaware Corporation incorporated on June 26, 1996 and is a leading provider of a smart grid communications platform that enables utilities to effectively deploy, integrate and communicate with multiple devices creating smart grid applications within the electric power distribution grid. The Ambient Smart Grid® communications platform, which includes hardware, software and firmware, provides the network platform to effectively manage smart grid applications. The Company’s innovative communications platform enables utilities to deploy and integrate multiple smart grid applications and technologies, in parallel on a single communications infrastructure, supporting smart metering, distribution automation, distribution management, demand response, distributed generation and more.

The Company’s long-standing relationship with Duke Energy, which it believes has one of the most forward-looking smart grid investment initiatives in North America, has led to rapid growth in the Company’s business. The Company entered into a long-term agreement in September 2009 with Duke Energy, currently its sole customer, to supply Duke Energy with their Ambient Smart Grid® communications nodes through 2015 and license our AmbientNMS®.

On July 18, 2011, the Company implemented a reverse stock split of its outstanding shares of common stock at a ratio of 1-for-100 shares. The reverse stock split has been reflected in this Prospectus. See Note 7.

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

PRINCIPLES OF CONSOLIDATION

During 2011, the Company’s only wholly-owned subsidiary, Insulated Connections Corporation Limited, was dissolved and is no longer consolidated in the Company’s financial statements. Prior to its dissolution in 2011, the financial statements included the accounts of Insulated Connections Corporation Limited, though the subsidiary had been inactive since 2001.

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. The Company bases its estimates on historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Some of these estimates can be subjective and complex and, consequently, actual results may differ from these estimates under different assumptions or conditions. For any given estimate or assumption made by the Company’s management, there may be other estimates or assumptions that are as reasonable. The Company believes that, given the current facts and circumstances, it is unlikely that applying any such other reasonable estimate or assumption would materially impact the financial statements.

CASH AND CASH EQUIVALENTS

The Company considers all highly liquid investments with maturities of three months or less from the date of purchase and whose carrying amount approximates fair value to be cash equivalents.

F-8

FAIR VALUE OF FINANCIAL INSTRUMENTS

Substantially all of the Company's financial instruments, consisting primarily of cash, accounts receivable, accounts payable, accrued expenses and other current liabilities are carried at, or approximate, fair value because of their short-term nature.

STOCK-BASED COMPENSATION

The Company accounts for stock-based compensation in accordance with accounting guidance now codified as Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 718, “Compensation – Stock Compensation.” Under the fair value recognition provision of financial stock-based compensation cost is estimated at the grant date based on the fair value of the award. The Company estimates the fair value of stock options granted using the Black-Scholes-Merton option pricing model.

NET INCOME (LOSS) PER SHARE

The Company computes net income (loss) per common share in accordance with the Earning Per Share topic of the FASB ASC. Basic net income (loss) per share (EPS) is computed by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per share adjusts basic net income (loss) per share for the effects of convertible securities, stock options and other potentially dilutive instruments, only in the periods in which such effect is dilutive.

The following is a reconciliation of the denominators of basic and diluted earnings per share computations:

(in thousands)	2009		2010		2011

Weighted average shares outstanding used to compute basic earnings per share		7,891		15,385		16,515

Effect of dilutive stock options and warrants		-		-		390

Weighted average shares outstanding and dilutive securities used to compute dilutive earnings per share		7,891		15,385		16,905

The following securities have been excluded from the calculation of net income (loss) per share, as their effect would be anti-dilutive.

(in thousands)	2009		2010		2011
Stock options		585		1,129		747
Warrants		788		1,560		800
Convertible debentures		6,667		----		----
		8,040		2,689		1,547

F-9

PROPERTY AND EQUIPMENT

Property and equipment are recorded at cost and depreciated using the straight-line method over the estimated useful lives of the assets, which range from one to five years. Upon retirement or disposal, the cost of the disposed asset and the related accumulated depreciation are removed from the accounts and any gain or loss is reflected in net income or loss.

REVENUE RECOGNITION

Hardware sales consist of smart grid nodes ("Nodes") as well as system software embedded in the Nodes. System software embedded in Ambient’s Nodes is used solely in connection with the operation of the product. Upon the sale and shipment of its products, the Company is not required to update the embedded software for newer versions that are subsequently developed. In addition, the Company does not offer or provide any free post-contract customer support. There is an original warranty period, which may run for a period of up to twelve months from sale of product, in which the Company will repair product when and if appropriate. As such, the Company recognizes revenue from the sales of Nodes when products are delivered to the customer.

The Company’s other proprietary software consists of the AmbientNMS®, an element management product that may be sold on a stand-alone basis. A purchaser of Ambient’s Nodes is not required to purchase this product, as Nodes could be managed by independently developed management software. The sale of the AmbientNMS® does not include post-contract customer support, unless the customer enters into a maintenance agreement with the Company. As such, the Company recognizes revenue from the sale of software product when shipped. Amounts billed to customers before software is shipped are classified as deferred revenue.

The Company offers maintenance service on a fee basis that entitles the purchasers of its Nodes and NMS® software providing telephone support and updates and upgrades to our products. Such revenue is amortized over the appropriate service period based on the terms of individual agreements.

ACCOUNTS RECEIVABLE

Accounts receivable are recorded net of an allowance for doubtful accounts based upon management's analysis of the collectability of the balances. At December 31, 2010 and 2011, the Company believed that no allowance was necessary.

At December 31, 2010 and 2011, one customer accounted for 100% of accounts receivable. See Note 10.

INVENTORY

Inventory is valued at the lower of cost or market determined on the first-in, first-out (FIFO) basis. The value of the inventory is adjusted for estimated obsolescence or unmarketable inventory equal to the difference between the cost of inventory and the estimated market value based upon assumptions about future demand and market conditions.

RESEARCH AND DEVELOPMENT AND PATENT COSTS

Both research and development costs and patent costs are expensed as incurred.

F-10

SOFTWARE DEVELOPMENT COSTS

Costs incurred in the research and development of new software products and enhancements to existing software products have historically been expensed as incurred. After technological feasibility is established, additional development costs are capitalized. No software development costs have been capitalized as of December 31, 2010 and 2011.

LEASED EMPLOYEES

The Company had a contract with Insperity, formerly known as Administaff, which is a professional employment organization. Pursuant to this contract, the Company and Insperity were co-employers of the Company’s personnel. Insperity was responsible for paying the salaries and wages of the Company personnel and providing personnel with health, dental and various other types of benefits at favorable rates for which the Company would not otherwise qualify. Insperity paid salaries and wages of the Company’s personnel directly from the Company’s bank accounts, and the Company paid Insperity a fee for its services.

Effective January 1, 2012, the Company terminated its contract with Insperity and currently administers its human resources related activities internally.

INCOME TAXES

The Company accounts for income taxes in accordance with accounting guidance now codified as FASB ASC 740, “Income Taxes,” which requires that the Company recognize deferred tax liabilities and assets based on the differences between the financial statement carrying amounts and the tax bases of assets and liabilities, using enacted tax rates in effect in the years the differences are expected to reverse. Deferred income tax benefit (expense) results from the change in net deferred tax assets or deferred tax liabilities. A valuation allowance is recorded when it is more likely than not that some or all deferred tax assets will not be realized.

The Company has adopted the provisions of FASB ASC 740-10-05, “Accounting for Uncertainties in Income Taxes.” The ASC clarifies the accounting for uncertainty in income taxes recognized in an enterprise's financial statements. The ASC prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The ASC provides guidance on de-recognition, classification, interest and penalties, accounting in interim periods, disclosure and transition.

F-11

WARRANTIES

The Company accounts for its warranties under the FASB ASC 450 “Contingencies.” The Company’s current standard product warranty includes a one-year warranty period for defects in material and workmanship. Due to the limited deployment of products, the Company had not historically accrued for the cost of warranty obligations and expensed any costs associated with repairing or replacing defective product as incurred. However, due to significantly increase sales volume during 2011, the Company began accruing a liability of approximately 0.2% of current communications node revenues for the estimated future costs of meeting its warranty obligations, based on its actual historical return rate of products within the one-year warranty period. The Company makes and revises this estimate based on the number of communications nodes delivered and its historical experience with warranty claims. The Company continually monitors the rate of actual product returns and the quality of its products including the quality of the products produced by its U.S. based contract manufacturer in China.

The Company engages in product quality programs and processes, including monitoring and evaluating the quality of component suppliers, in an effort to ensure the quality of its products and reduce its warranty exposure. The warranty obligation will be affected not only by product failure rates, but also the costs to repair or replace failed products and potential service and delivery costs incurred in correcting a product failure. If the Company’s actual product failure rates, repair or replacement costs, or service or delivery costs differ from these estimates, accrued warranty costs would be adjusted in the period that such events or costs become known.

The following table summarizes the activity of the Company’s warranty accrual for the years ended 2010 and 2011, respectively:

(in thousands)	2010		2011
Balance at beginning of period	$	---	$	---
Warranty costs accrued		---		115
Warranty costs incurred		---		---

Balance at end of period	$	---	$	115

The Company’s software license agreements also generally include a warranty that the Company's software products will substantially operate as described in the applicable program documentation. The Company also warrants that services the Company performs will be provided in a manner consistent with industry standards. To date, the Company has not incurred any material costs associated with these product and service performance warranties, and as such the Company has not provided for any reserves for any such warranty liabilities in its operating results.

F-12

IMPAIRMENT OF LONG-LIVED ASSETS

The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable from future undiscounted cash flows. Impairment losses are recorded for the excess, if any, of the carrying value over the fair value of the long-lived assets. The Company did not record an impairment charge in 2010 and 2011.

FAIR VALUE MEASUREMENTS

FASB ASC Topic 820, "Fair Value Measurements and Disclosures" ("ASC 820"), defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1	—	Quoted prices in active markets for identical assets or liabilities.
Level 2	—	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3	—	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

On January 1, 2011, the Company adopted Accounting Statement Update (ASU) 2009-13 (ASU 2009-13),“Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements,” which eliminates the residual method of allocation, and instead requires companies to use the relative selling price method when allocating revenue in a multiple deliverable arrangement. When applying the relative selling price method, the selling price for each deliverable shall be determined using vendor specific objective evidence of selling price, if it exists and otherwise using third-party evidence of selling price. If neither vendor specific objective evidence nor third-party evidence of selling price exists for a deliverable, companies shall use their best estimate of the selling price for that deliverable when applying the relative selling price method. The Company elected to adopt this guidance prospectively for all revenue arrangements entered into or materially modified after the date of adoption. The adoption of ASU 2009-13 did not have a material effect on the Company’s financial position, results of operations or cash flows.

On January 1, 2011, the Company adopted ASU 2010-17 (ASU 2010-17), "Revenue Recognition-Milestone Method (Topic 605): Milestone Method of Revenue Recognition." The amendments in this Update are effective on a prospective basis for milestones achieved in fiscal 2011 and thereafter. The Company’s adoption of ASU 2010-17 did not have a material effect on its financial position, results of operations or cash flows.

F-13

In May 2011, the Financial Accounting Standards Board (FASB) issued ASU No. 2011-04: Fair Value Measurement (Topic 820): Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs (ASU 2011-04). ASU 2011-04 clarifies application of fair value measurement and disclosure requirements and is effective for annual periods beginning after December 15, 2011. The Company does not expect that the provisions of ASU 2011-04 will have a material effect on its financial position and results of operations.

In June 2011, the FASB issued ASU No. 2011-05: Comprehensive Income (Topic 220): Presentation of Comprehensive Income (ASU 2011-05). ASU 2011-05 provides that an entity that reports items of other comprehensive income has the option to present comprehensive income in either one continuous financial statement or two consecutive financial statements. ASU 2011-05 is effective for annual periods beginning after December 15, 2011. The Company does not expect ASU 2011-05 to have any impact on its financial position and results of operations.

In September 2011, the FASB issued ASU 2011-08 (ASU 2011-08), “Intangibles Goodwill and Other (Topic 350): Testing Goodwill for Impairment” ASU 2011-08 updated the guidance on the periodic testing of goodwill for impairment. The updated guidance gives companies the option to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The amendment is intended to reduce the cost and complexity of the annual goodwill impairment test by providing entities an option to perform a qualitative assessment to determine whether further impairment testing is necessary. The update ASU 2011-08 is effective for fiscal years beginning after December 15, 2011, with early adoption permitted. The Company does not expect ASU 2011-08 to have a material effect on the Company’s financial position, results of operation or cash flows.

The Company does not believe that any other recently issued, but not yet effective, accounting standard if currently adopted would have a material effect on the accompanying financial statements.

NOTE 3 – INVENTORY

Finished goods primarily consists of shipments in transit which represent the cost of finished goods inventory shipped for which title has not yet passed to the customer. Inventory consisted of the following at December 31, 2010 and 2011:

(in thousands)	December 31,
	2010		2011
Raw material	$	139		$	--
Finished goods		695			1,460
	$	834		$	1,460

F-14

NOTE 4 - PROPERTY AND EQUIPMENT

Property and equipment consisted of the following at December 31, 2010 and 2011:

(in thousands)	December 31,
	2010		2011
Computers	$	309	$	654
Software		505		657
Software (capital lease)		30		--
Machinery and equipment		626		975
Furniture and office equipment		195		248
		1,667		2,534
Less – accumulated depreciation		922		1,285
	$	745	$	1,249

Depreciation expense was approximately $303,000, $380,000 and $458,000 for the years ended December 31, 2009, 2010 and 2011, respectively.

NOTE 5 - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES

(in thousands)	December 31,
	2010		2011
Accrued interest	$	244	$	--
Accrued compensation and benefits		124		391
Accrued professional fees		31		16
Accrued freight		152		140
Accrued taxes		15		43
Other accrued liabilities		67		124
	$	633	$	714

Accrued interest represented amounts owed to Vicis Capital Master Fund ("Vicis" or "Investor") on secured convertible promissory notes. See Note 6.

F-15

NOTE 6 - CONVERTIBLE DEBT

Securities Purchase Agreements

(i) On July 31, 2007, the Company entered into the Securities Purchase Agreement (the "July 07 Purchase Agreement") with Vicis, pursuant to which Vicis purchased the Company’s Secured Convertible Promissory Note in aggregate principal amount of $7,500,000 (the “July 07 Note”). The July 07 Note had a term of three years and was scheduled to become due on July 31, 2010. The outstanding principal amount of the July 07 Note was convertible at the option of the holder into shares of the Company’s common stock (the “Common Stock”) at an initial conversion price of $7.50 per share, subject to certain adjustments. The conversion price was adjusted to $1.50 in connection with the various Agreements discussed below. Amounts owing under the July 07 Note were secured by substantially all of the assets of the Company. In January 2010, the July 07 Note was converted into 5,000,000 shares of Common Stock.

(ii) On November 1, 2007, the Company entered into a Securities Purchase Agreement (the "November 07 Purchase Agreement") with Vicis pursuant to which Vicis purchased the Company’s Secured Convertible Promissory Note in the principal amount of $2,500,000 (the “November 07 Note”). The November 07 Note had a term of three years and was scheduled to become due on November 1, 2010. The outstanding principal amount of the November 07 Note was convertible at the option of the holder into shares of Common Stock at an initial conversion price of $4.50 per share. In connection with the Debenture Amendment Agreement discussed below, the conversion price was adjusted to $1.50 per share. Amounts owing under the November 07 Note were secured by substantially all of the assets of the Company. In January 2010, the November 07 Note was converted into 1,666,667 shares of Common Stock.

(iii) On January 15, 2008, the Company entered into a Securities Purchase Agreement (the "January 2008 Purchase Agreement") with Vicis pursuant to which Vicis purchased the Company’s Secured Convertible Promissory Note in the principal amount of $2,500,000 (the “January 08 Note”; together with the November 07 Note and the July 07 Note, the “Notes”). The January 08 Note had a term of three years and was scheduled to become due on January 15, 2011. The outstanding principal amount of the January 08 Note was convertible at the option of the holder into shares of Common Stock at an initial conversion price of $3.50 per share. In connection with the Debenture Amendment Agreement discussed below, the conversion price was adjusted to $1.50 per share. Amounts owing under the January 08 Note were secured by substantially all of the assets of the Company. In August 2009, the January 08 Note was converted into 1,666,667 shares of Common Stock.

The Company determined and adjusted the amount of accrued interest owed to Vicis after the notes were converted as discussed above. For the year ended December 31, 2010, the Company recorded a gain on the conversion of the debentures totaling approximately $252,000. Such gain represents the reversal of accrued interest recorded in previous periods.

At December 31, 2010 and 2011, accrued interest owed to Vicis amounted to $244,262 and $0, respectively. See Note 5.

F-16

Debt Modification

On November 21, 2008, the Company and Vicis entered into a Debenture Amendment Agreement (the “Debenture Amendment Agreement”), pursuant to which Vicis invested in the Company an additional $8 million. In consideration of the investment, the Company reduced the conversion price on the Notes referred to above to $1.50 per share. The parties also agreed that in the event that on the trading day immediately preceding June 1, 2009, the closing per share price of the Common Stock was less than $10.00, then the per share conversion price with respect to any amount then outstanding under the Notes would automatically be further adjusted to $1.00. The price of the Common Stock was greater than $10.00 on the trading day immediately preceding June 1, 2009, and therefore no further adjustment of the conversion price was effected.

The fair value of the Convertible Promissory Notes was determined utilizing Level 3 inputs. The fair value of the Convertible Promissory Notes was calculated utilizing the fully diluted market value of the invested capital of the Company immediately before and after the date of the debt modification. The fair value was determined to be the face value of the Convertible Promissory Notes at the date of the debt modification.

For financial reporting purposes, the Company recorded an initial discount of $12,500,000, based upon a conversion price of $1.00 to reflect the beneficial conversion feature related to the Debenture Modification Agreement. The discount was being amortized to the date of maturity of the various Convertible Promissory Notes unless converted earlier. On June 1, 2009, the beneficial conversion feature was re-measured based on the final conversion price being set at $1.50. This resulted in a reduction in the initial value of the beneficial conversion feature of $8,333,333 and a like reduction to additional paid-in capital.

Interest incurred on the Notes amounted to $614,827, $28,296 and $0 for the years ended December 31, 2009, 2010 and 2011, respectively.

On June 30, 2009, the Company agreed to modify the terms of the expiring Class A warrants. Under the new terms, the warrants were exercisable through August 31, 2009 and the exercise prices were reduced from $20.00 to $15.00 per share. The resulting charge due to the modification was approximately $1.1 million and is reflected in interest expense in the year ended December 31, 2009. As a result of the debt conversions of the July 07 Note and the January 08 Note in January 2010, the unamortized debt discounts totaling $183,609 were charged to interest expense in fiscal 2010. Amortization of the discounts related to the convertible notes above totaled approximately $3.2 million, $183,609 and $0 for the years ended December 31, 2009, 2010 and 2011, respectively.

NOTE 7 - STOCKHOLDERS' EQUITY

The Company has two classes of capital stock: common and preferred. As of December 31, 2011, the Company had 100,000,000 shares of common stock authorized and 5,000,000 shares of preferred stock authorized both at $0.001 par value per share.

On July 18, 2011, the Company filed a Certificate of Amendment to its Restated Certificate of Incorporation effecting a reverse stock split of its outstanding shares of common stock at a ratio of 1-for-100 shares (the “Reverse Split”). The Certificate of Amendment provided that each 100 outstanding shares of the Company’s common stock would be exchanged and combined, automatically, without further action, into one share of common stock. Following the implementation of the Reverse Split, the number of authorized shares of common stock that we are authorized to issue from time to time is 100,000,000 shares. The Reverse Split became effective on July 18, 2011 and has been reflected in this Annual Report on Form 10-K. On August 3, 2011, our common stock began to trade on the NASDAQ Capital Market under our new ticker symbol “AMBT.”

F-17

Securities Purchase Agreements and Warrants

On November 16, 2009, we and Vicis entered into an agreement, which was subsequently amended in January 2010, pursuant to which Vicis furnished to us access to an $8,000,000 equity based credit line. Pursuant to the arrangement, Vicis deposited into an escrow account $8,000,000. From time to time as our cash resources fell below $1,500,000 (the ‘‘Cash Balance Condition Precedent”), we were entitled to receive $500,000 from the account in consideration of which we would issue to Vicis 50,000 shares of common stock and warrants for a corresponding number of shares of common stock. Between January 19 and December 29, 2010, we effected six draw-downs in the amount of the $3,000,000 and issued 300,000 shares of our common stock.

On December 30, 2010, we and Vicis further amended the arrangement described above (“2nd Amendment”) pursuant to which Vicis applied the $5 million then remaining in the escrow account to the purchase of Company securities (the “Investment”). Vicis made the Investment despite the fact that the Cash Balance Condition Precedent had not been met. In consideration of the Investment, we issued to Vicis 500,000 shares of our common stock as well as Series G Warrants to purchase, over a two year period from the date of issuance, an additional 500,000 share of common stock. Under the terms of the 2nd Amendment, the per share exercise price of the Series G Warrants issuable in connection with the Investment was set at $20.00 (rather than the $25.00 per share exercise price provided under the original terms of the agreement).

Warrant Modification

In May 2006, the Company raised net proceeds of approximately $9.0 million in a private placement of $10,000,000 in principal amount of its two-year 8% Convertible Debentures (the "2006 Debentures"). The balance was repaid in its entirety by January 2008. Investors in the private placement also received Class A warrants, exercisable through June 30, 2009, to purchase up to 333,333 shares of the Company's Common Stock at a per share exercise price of $20.00 and Class B warrants, exercisable through June 30, 2011, to purchase up to 333,333 shares of the Company’s Common Stock at a per share exercise price of $25.00.

In connection with the placement of the 2006 Debentures, the Company issued to a registered broker dealer that acted as placement agent warrants consisting of (x) warrants to purchase an aggregate of 66,667 shares of Common Stock having an initial exercise price equal to $15.00, (y) warrants to purchase an aggregate of 33,333 shares of Common Stock having an initial exercise price equal to $20.00, and (z) warrants to purchase an aggregate of 33,333 shares of Common Stock having an initial exercise price equal to $25.00. Except as specifically noted, these warrants otherwise are on substantially the same terms and conditions as the investor warrants.

On June 30, 2009, the Company modified the terms of the expiring Class A warrants. Under the new terms the warrants were exercisable though August 31, 2009 and the exercise prices were reduced from $20.00 to $15.00 per share. The Company valued the warrant modification at approximately $1.1 million using the Black-Scholes pricing model and the following assumptions: contractual term of 0.167 years, an average risk-free interest rate of 0.19% a dividend yield of 0% and volatility of 93%, and is reflected in interest expense during the period ended December 31, 2009

As of December 31, 2011, we had outstanding warrants to purchase approximately 1.1 million shares of common stock with a weighted average exercise price of approximately $16.61 per share, of which approximately outstanding warrants to purchase 955,000 shares of common stock are held by Vicis with a weighted average exercise price of approximately $18.89 per share, and the remaining warrants have a weighted average exercise price of approximately $3.68 per share.

F-18

NOTE 8 - STOCK-BASED COMPENSATION

The following table presents stock-based compensation expense included in the Company’s statements of operations for the years ended December 31, 2009, 2010 and 2011 (in thousands):

	Year Ended December 31,
	2009		2010		2011
Cost of goods sold	$	-	$	-	$	573
Research and development		360		241		1,448
Selling, general and administrative expenses		607		485		3,669
	$	967	$	726	$	5,690

Stock Incentive Plans

In November 2000, the Company adopted the 2000 Equity Incentive Plan (the "2000 Incentive Plan"). The 2000 Incentive Plan provides for the grant of incentive stock options, nonqualified stock options, stock appreciation rights, restricted stock, bonus stock, awards in lieu of cash obligations, other stock-based awards and performance units. On August 15, 2011, the Board of Directors of the Company approved an amendment to the Company’s 2000 Incentive Plan to increase the number of shares of the Company’s common stock available for issuance under the 2000 Incentive Plan from 1,100,000 to 2,750,000 shares. By written consent, the holder of a majority of the shares of outstanding common stock of the Company approved the amendment for such increase.

In December 2002, the Company adopted the 2002 Non-Employee Directors Stock Option Plan (the "2002 Directors Plan") providing for the issuance of shares of Common Stock to non-employee directors. Under the 2002 Directors Plan, only non-qualified options may be issued, and they will be exercisable for a period of six years from the date of grant. On August 15, 2011, the Board of Directors of the Company also approved an amendment to the Company’s 2002 Directors Plan to increase the number of shares of the Company’s common stock available for issuance under the 2002 Directors Plan from 250,000 to 750,000 shares. By written consent, the holder of a majority of the shares of outstanding common stock of the Company approved the amendment for such increase.

In addition to the options granted under the stock option plans discussed above (the "Plans”), the Company has issued options outside of the Plans, pursuant to various employment, consulting and separation agreements (referred to as “Non-plan” stock options).

F-19

Option activity for 2009, 2010 and 2011 is summarized as follows:

	Plan			Non-plan			Total			Weighted Average Exercise Price

Options outstanding, January 1, 2009		286,120			37,750			323,870		$	17.00
Granted		274,500			---			274,500			4.00
Exercised		(7,500	)		---			(7,500	)		6.00
Forfeited		(4,000	)		(1,500	)		(5,500	)		13.00

Options outstanding, January 1, 2010		549,120			36,520			585,370			11.00
Granted		581,450			15,000			596,450			10.40
Exercised		(6,860	)		––			(6,860	)		4.00
Forfeited		(45,495	)		---			(45,495	)		13.00

Options outstanding, January 1, 2011		1,078,215			51,250			1,129,465			11.40
Granted		1,698,075			--			1,698,075			6.70
Exercised		(8,250	)		––			(8,250	)		2.56
Forfeited		(33,167	)		(36,250	)		(69,417	)		26.46

Options outstanding, December 31, 2011		2,734,873			15,000			2,749,873		$	8.16
Shares of Common Stock available for
future grant under the plans		725,258

Aggregate intrinsic value	$	300,973		$	---		$	300,973

The aggregate intrinsic value was calculated based on the positive difference between the closing market price of the Company’s Common Stock and the exercise price of the underlying options.

F-20

The following table summarizes information about stock options outstanding at December 31, 2011:

			Weighted Average				Options Exercisable
			Remaining				Weighted Average
		Number Outstanding	Contractual Life (yrs)		Exercise Price		Number Exercisable		Exercise Price
Ranges of price		Number Outstanding	Contractual Life (yrs)		Exercise Price		Number Exercisable		Exercise Price
$	3.00-4.50	340,065		5.96	$	3.74		340,065	$	3.74
$	5.00-7.51	1,652,575		9.04	$	6.60		722,877	$	6.52
$	8.00-12.30	622,733		7.90	$	11.83		318,610	$	11.95
$	15.00-20.00	120,000		2.80	$	19.76		120,000	$	19.76
$	25.00-30.00	9,500		3.50	$	27.63		9,500	$	27.63
$	50.00	5,000		2.61	$	50.00		5,000	$	50.00
$	3.00-50.00	2,749,873		8.09	$	8.16		1,516,052	$	8.36

Share based compensation - The fair values of stock options granted were estimated using the Black-Scholes option-pricing model with the following assumptions:

	2009			2010			2011
Risk free interest rate		1.07 – 2.66	%		0.85- 2.38	%		0.39-2.30	%
Expected life		3.50 – 5.75			3.5 -5.75			3.0 -6.0
Expected volatility		162 – 169	%		155 – 168	%		109 - 169	%
Dividend yield		---			––			––

Weighted-average grant date fair value per share	$	3.50		$	$10.40		$	4.33

On December 20, 2011, the Compensation Committee of the Board of Directors approved grants of options to purchase 960,000 shares of our common stock under the Company’s 2000 Equity Incentive Plan to senior officers. Options as to one third of such shares vested upon grant at a per share exercise price of $6.30. Options as to the balance of such shares are scheduled to vest on a quarterly basis, in eight equal quarterly installments at the end of each quarter, beginning with the quarter ending March 31, 2013, with half of the option grants exercisable at a per share exercise price of $6.75 and the remaining half at $7.25. In addition, options to purchase 394,000 shares of common stock were granted to the Board of Directors and Advisory Board members, which immediately vested as well. As a result of the immediate vesting of a portion of the options granted to senior executives and the options granted to the Board of Directors and Advisory Board members, the Company recorded a stock-based compensation charge of approximately $3.0 million during the fourth quarter of 2011.

As of December 31, 2011, there was $7.3 million of unrecognized compensation cost related to non-vested options granted. That cost is expected to be recognized over a weighted-average period of 23.5 months.

F-21

NOTE 9 - INCOME TAXES

The provision for income taxes at December 31, 2011 was comprised of federal alternative minimum tax.

At December 31, 2011, the Company had available $68.3 million of net operating loss carry forwards, for U.S. income tax purposes which expire in the years 2016 through 2030. However, due to changes in stock ownership, the use of the U.S. net operating loss carry forwards is limited under Section 382 of the Internal Revenue Code. As such, approximately $56.2 million of these net operating loss carry forwards will expire and will not be available to use against future tax liabilities. The Company has ceased its foreign operations and has abandoned the foreign net operating loss carry forwards.

Due to the uncertainty of their realization, no income tax benefit has been recorded by the Company for these loss carry forwards as valuation allowances have been established for any such benefits.

Significant components of the Company's deferred tax assets are as follows:

(in thousands)	December 31,
	2010			2011
Net operating loss carry forwards	$	6,828		$	4,833
Stock based compensation		1,025			3,163
Other		615			459
Total deferred tax assets		8,468			8,455
Valuation allowance		(8,468	)		(8,455	)
Net deferred tax assets	$	––		$	––

The decrease in the valuation allowance was due primarily to the offset of net operating losses against taxable income in 2011and the effects of accrued expenses and depreciation and amortization net of increases in stock based compensation.

The following is a reconciliation of the federal statutory tax rate of 35% for 2009, 2010 and 2011, with the provision for income taxes:

	December 31,
	2009			2010			2011
Statutory tax rate		(35	%)		(35	%)		35	%
Net operating loss carry forward		--			--			(35	)
Valuation allowance		35			35			--
Alternative minimum tax		--			--			4
Effective federal tax rate		0	%		0	%		4	%

At December 31, 2010 and 2011, the Company had no material unrecognized tax benefits, and no adjustments to liabilities or operations were required. The Company does not expect that its unrecognized tax benefits will materially increase within the next twelve months. The Company did not recognize any interest or penalties related to uncertain tax positions at December 31, 2010 and 2011.

The Company files U.S. and state income tax returns in jurisdictions with varying statutes of limitations. The 2008 through 2011 tax years generally remain subject to examination by federal and most state tax authorities.

F-22

NOTE 10 - CONCENTRATION OF CREDIT RISK AND SIGNIFICANT CUSTOMER

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and cash equivalents, and accounts receivable. The Company places its cash and cash equivalents with high quality financial institutions. With respect to accounts receivable, such receivables are entirely from Duke Energy, comprising all of the Company’s revenues. This customer concentration increases the Company’s exposure to credit risk since the financial insolvency of this customer could have a significant impact on its liquidity and results of operations.

The Company utilizes one contract manufacturer for all of its production requirements. The Company’s products are manufactured in China by a U.S.-based company that also performs services for numerous other companies. The Company depends on its manufacturer to maintain high levels of productivity and satisfactory delivery schedules. The Company’s reliance on its manufacturer reduces its control over the manufacturing process, exposing the Company to risks, including reduced control over quality assurance, product costs and product supply.

NOTE 11 - OPERATING LEASES

The Company does not own any real property. The Company currently leases approximately 28,000 square feet of office space in Newton, Massachusetts. The Company’s leases expire on December 31, 2012.

Deferred rent represents the cumulative excess of the straight-lined rent expense over cash paid for rent. The amount of deferred rent remaining on the Company’s balance sheet as of December 31, 2011 was approximately $100,000, which will be fully amortized to rent expense during 2012. Total minimum rental payments for 2012 are approximately $558,000. Rent expense for 2009, 2010 and 2011 was $290,430, $308,015, and $347,679, respectively.

NOTE 12 – RETIREMENT PLANS

Through December 31, 2011, the Company maintained a SIMPLE IRA plan for the benefit of its employees. The Company made contributions to the plan in the amount of 3% of compensation, but such contributions could not exceed the amount of the employee's contribution. The Company's contributions for 2009, 2010 and 2011 were $69,378, $96,492, and $123,060, respectively.

Effective January 1, 2012, the Company established a 401(k) plan for eligible employees. Under the provision of the plan, eligible employees may voluntarily contribute a portion of their compensation up to the statutory limit. The Company’s 401(k) plan provides for a matching contribution of up to 4% of participating employee compensation.

NOTE 13 – RELATED PARTY TRANSACTIONS

The Company retains the services of a law firm to perform legal services from time to time. One of the partners of the firm is a non-employee director of the Company. Legal fees incurred amounted to $88,797, $57,161 and $394,153 for 2009, 2010 and 2011, respectively.

NOTE 14 - SUBSEQUENT EVENTS

The Company reviewed subsequent events through the date of this filing.

F-23

AMBIENT CORPORATION

up to 279,650 shares of Common Stock

PROSPECTUS

March 29, 2012

Ambient (AMBT) Inactive 424B3Prospectus supplement