EXHIBIT 10.2

                            POINTCAST INCORPORATED

                                1994 STOCK PLAN

                    STOCK OPTION AGREEMENT -- EARLY EXERCISE


     Unless otherwise defined herein, the terms defined in the Plan shall have
the same defined meanings in this Stock Option Agreement.

I. NOTICE OF STOCK OPTION GRANT

        
Name:    Phil Koen
     ----------------------------------------
Address:
        -------------------------------------

     You have been granted an option to purchase Common Stock of the Company,
subject to the terms and conditions of the Plan and this Stock Option Agreement,
as follows:

                                                                           
     Grant Number                        81                                
                                    -------------------------------
                                                                           
     Date of Grant                       June 4, 1997                      
                                    -------------------------------
                                                                           
     Vesting Commencement Date           May 28, 1997                      
                                    -------------------------------
                                                                           
     Exercise Price per Share       $    $1.00                             
                                     ------------------------------
                                                                           
     Total Number of Shares Granted      509,187                           
                                    -------------------------------
                                                                           
     Total Exercise Price           $    $509,187                          
                                     ------------------------------
     Type of Option:                      Incentive Stock Option       
                                    -----
                                      X   Nonstatutory Stock Option         
                                    -----
                                                                           
     Term/Expiration Date:                June 24, 2007                     
                                     ------------------------------

     Exercise and Vesting Schedule:
     ----------------------------- 

     This Option is exercisable immediately, in whole or in part, conditioned
upon Optionee entering into a Restricted Stock Purchase Agreement with respect
to any unvested Option Shares.  The Shares subject to this Option shall vest and
be released from the Company's repurchase option, as set forth in the Restricted
Stock Purchase Agreement, according to the following schedule:

 
          25% of the Shares subject to the Option shall vest twelve months after
the Vesting Commencement Date, and 1/48 of the Shares subject to the Option
shall vest each month thereafter, subject to your remaining in Continuous Status
as an Employee or Consultant as of such vesting dates. Notwithstanding the
foregoing, in the event of a bona fide acquisition of the Company pursuant to a
merger of the Company with or into another business entity (other than a merger
or consolidation which would result in the voting securities of the Company
outstanding immediately prior to the merger continuing to represent (either by
remaining outstanding or by being converted into voting securities of the
surviving entity) at least fifty percent (50%) of the total voting power
represented by the voting securities of the Company or such surviving entity
outstanding immediately after such merger or consolidation) with or into another
corporation or a sale of all or substantially all of the assets of the Company,
One Hundred percent (100%) of the shares subject to the Option shall become
fully vested and exercisable immediately prior to the effective time thereof.

     Termination Period:
     ------------------ 

     This Option may be exercised, to the extent vested, for thirty (30) days
after termination of Optionee's Continuous Status as an Employee or Consultant,
or such longer period as may be applicable upon death or disability of Optionee
as provided in the Plan, but in no event later than the Term/Expiration Date as
provided above.

II.  AGREEMENT
     ---------

     1.   Grant of Option.  PointCast Incorporated (the "Company"), hereby
          ---------------                                                 
grants to the Optionee named in the Notice of Grant (the "Optionee"), an option
(the "Option") to purchase the total number of shares of Common Stock (the
"Shares") set forth in the Notice of Grant, at the exercise price per share set
forth in the Notice of Grant (the "Exercise Price") subject to the terms,
definitions and provisions of the 1994 Stock Plan (the "Plan") adopted by the
Company, which is incorporated herein by reference.

          If designated in the Notice of Grant as an Incentive Stock Option
("ISO"), this Option is intended to qualify as an ISO as defined in Section 422
of the Code.  However, if this Option is intended to be an ISO, to the extent
that it exceeds the $100,000 rule of Code Section 422(d) it shall be treated as
a Nonstatutory Stock Option ("NSO").

     2.   Exercise of Option.  This Option shall be exercisable during its term
          ------------------                                                   
in accordance with the provisions of Section 9 of the Plan as follows:

          (i)  Right to Exercise.
               ----------------- 

               (a) Subject to subsections 2(i)(b) through 2(i)(e) below, this
option may be exercised in whole or in part at any time. Vested Shares shall not
be subject to the Company's 

                                      -2-

 
repurchase right (as set forth in the Restricted Stock Purchase Agreement,
attached hereto as Exhibit C-1).

               (b) As a condition to exercising this Option for unvested Shares,
the Optionee must execute the Restricted Stock Purchase Agreement.

               (c) This Option may not be exercised for a fraction of a Share.

               (d) In the event of Optionee's death, disability or other
termination of the employment or consulting relationship, the exercisability of
the Option is governed by Sections 6, 7 and 8 below, subject to the limitation
contained in subsection 2(i)(e).

               (e) In no event may this Option be exercised after the date of
expiration of the term of this Option as set forth in the Notice of Grant.

          (ii) Method of Exercise.  This Option shall be exercisable by written
               ------------------                                              
notice (in the form attached as Exhibit A) which shall state the election to
exercise the Option, the number of Shares in respect of which the Option is
being exercised, and such other representations and agreements with respect to
such shares of Common Stock as may be required by the Company pursuant to the
provisions of the Plan.  Such written notice shall be signed by the Optionee
and, together with an executed copy of the Restricted Stock Purchase Agreement,
if applicable, shall be delivered in person or by certified mail to the
Secretary of the Company.  The written notice and Restricted Stock Purchase
Agreement shall be accompanied by payment of the Exercise Price.  This Option
shall be deemed to be exercised upon receipt by the Company of such written
notice and Restricted Stock Purchase Agreement accompanied by the Exercise
Price.

          No Shares shall be issued pursuant to the exercise of an Option unless
such issuance and such exercise shall comply with all relevant provisions of law
and the requirements of any stock exchange upon which the Shares may then be
listed.  Assuming such compliance, for income tax purposes the Shares shall be
considered transferred to the Optionee on the date on which the Option is
exercised with respect to such Shares.

     3.  Optionee's Representations.  In the event the Shares purchasable
         --------------------------                                      
pursuant to the exercise of this Option have not been registered under the
Securities Act of 1933, as amended, at the time this Option is exercised,
Optionee shall, if required by the Company, concurrently with the exercise of
all or any portion of this Option, deliver to the Company his or her Investment
Representation Statement in the form attached hereto as Exhibit B, and shall
read the applicable rules of the Commissioner of Corporations attached to such
Investment Representation Statement.

     4.  Lock-Up Period.  Optionee hereby agrees that if so requested by the
         --------------                                                     
Company or any representative of the underwriters (the "Managing Underwriter")
in connection with any registration of the offering of any securities of the
Company under the Securities Act, Optionee shall not sell or 

                                      -3-

 
otherwise transfer any Shares or other securities of the Company during the 180-
day period (or such longer period as may be requested in writing by the Managing
Underwriter and agreed to in writing by the Company) (the "Market Standoff
Period") following the effective date of a registration statement of the Company
filed under the Securities Act; provided, however, that such restriction shall
apply only to the first registration statement of the Company to become
effective under the Securities Act that includes securities to be sold on behalf
of the Company to the public in an underwritten public offering under the
Securities Act. The Company may impose stop-transfer instructions with respect
to securities subject to the foregoing restrictions until the end of such Market
Standoff Period.

      5.  Method of Payment.  Payment of the Exercise Price shall be by any of
          -----------------                                                   
the following, or a combination thereof, at the election of the Optionee:

          (i)   cash; or

          (ii)  check; or

          (iii) surrender of other shares of Common Stock of the Company which
(A) in the case of Shares acquired pursuant to the exercise of a Company option,
have been owned by the Optionee for more than six (6) months on the date of
surrender, and (B) have a Fair Market Value on the date of surrender equal to
the Exercise Price of the Shares as to which the Option is being exercised; or

          (iv)  to the extent permitted by the Administrator, delivery of a
properly executed exercise notice together with such other documentation as the
Administrator and the broker, if applicable, shall require to effect an exercise
of the Option and delivery to the Company of the sale or loan proceeds required
to pay the Exercise Price; or

          (v)   full recourse promissory note, in the form attached hereto
as Exhibit C-6.

      6.  Restrictions on Exercise.  This Option may not be exercised until such
          ------------------------                                              
time as the Plan has been approved by the shareholders of the Company, or if the
issuance of such Shares upon such exercise or the method of payment of
consideration for such shares would constitute a violation of any applicable
federal or state securities or other law or regulation, including any rule under
Part 207 of Title 12 of the Code of Federal Regulations ("Regulation G") as
promulgated by the Federal Reserve Board.  As a condition to the exercise of
this Option, the Company may require Optionee to make any representation and
warranty to the Company as may be required by any applicable law or regulation.

      7.  Termination of Relationship.  In the event an Optionee's Continuous
          ---------------------------                                        
Status as an Employee or Consultant terminates, Optionee may, to the extent the
Option was vested at the date of such termination (the "Termination Date"),
exercise this Option during the Termination Period set out in the Notice of
Grant.  To the extent that Optionee was not vested in this Option at the date of
such termination, or if Optionee does not exercise this Option within the time
specified herein, the Option shall terminate.

                                      -4-

 
      8.  Disability of Optionee.  Notwithstanding the provisions of Section 6
          ----------------------                                              
above, in the event of termination of an Optionee's Continuous Status as an
Employee or Consultant as a result of his or her disability, Optionee may, but
only within twelve (12) months from the date of such termination (and in no
event later than the expiration date of the term of such Option as set forth in
the Stock Option Agreement), exercise the Option to the extent the Option was
vested at the date of such termination; provided, however, that if such
disability is not a "disability" as such term is defined in Section 22(e)(3) of
the Code, in the case of an ISO such ISO shall cease to be treated as an ISO and
shall be treated for tax purposes as an NSO on the ninety-first (91st) day
following such termination.  To the extent that Optionee is not vested in the
Option at the date of termination, or if Optionee does not exercise such Option
within the time specified herein, the Option shall terminate, and the Shares
covered by such Option shall revert to the Plan.

      9.  Death of Optionee.  In the event of termination of Optionee's
          -----------------                                            
Continuous Status as an Employee or Consultant as a result of the death of
Optionee, the Option may be exercised at any time within twelve (12) months
following the date of death (but in no event later than the date of expiration
of the term of this Option as set forth in Section 10 below), by Optionee's
estate or by a person who acquires the right to exercise the Option by bequest
or inheritance, but only to the extent the Option was vested at the date of
death.  To the extent that Optionee is not vested in the Option at the date of
death, or if the Option is not exercised within the time specified herein, the
Option shall terminate, and the Shares covered by such Option shall revert to
the Plan.

      10. Non-Transferability of Option.  This Option may not be transferred in
          -----------------------------                                        
any manner otherwise than by will or by the laws of descent or distribution and
may be exercised during the lifetime of Optionee only by Optionee.  The terms of
this Option shall be binding upon the executors, administrators, heirs,
successors and assigns of the Optionee.

      11. Term of Option.  This Option may be exercised only within the term set
          --------------                                                        
out in the Notice of Grant, and may be exercised during such term only in
accordance with the Plan and the terms of this Option.

      12. Tax Consequences.  Set forth below is a brief summary as of the date
          ----------------                                                    
of this Option of some of the federal tax consequences of exercise of this
Option and disposition of the Shares.  THIS SUMMARY IS NECESSARILY INCOMPLETE,
AND THE TAX LAWS AND REGULATIONS ARE SUBJECT TO CHANGE.  OPTIONEE SHOULD CONSULT
A TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

          (i)   Exercise of ISO.  If this Option qualifies as an ISO, there will
                ---------------                                                 
be no regular federal income tax liability upon the exercise of the Option,
although the excess, if any, of the Fair Market Value of the Shares on the date
of exercise over the Exercise Price will be treated as an adjustment to the
alternative minimum tax for federal tax purposes and may subject the Optionee to
the alternative minimum tax in the year of exercise.

                                      -5-

 
          (ii)  Exercise of ISO Following Disability.  If the Optionee's
                ------------------------------------                    
Continuous Status as an Employee or Consultant terminates as a result of
disability that is not total and permanent disability as defined in Section
22(e)(3) of the Code, to the extent permitted on the date of termination, the
Optionee must exercise an ISO within three months of such termination for the
ISO to be qualified as an ISO.

          (iii) Exercise of NSO.  There may be a regular federal income tax
                ---------------                                            
liability upon the exercise of an NSO.  The Optionee will be treated as having
received compensation income (taxable at ordinary income tax rates) equal to the
excess, if any, of the fair market value of the Shares on the date of exercise
over the Exercise Price.  If Optionee is an Employee, the Company will be
required to withhold from Optionee's compensation or collect from Optionee and
pay to the applicable taxing authorities an amount equal to a percentage of this
compensation income at the time of exercise.  If the Optionee is subject to
Section 16 of the Exchange Act, then the date of income recognition may be
deferred for up to six months.

          (iv)  Disposition of Shares.  In the case of an NSO, if Shares are
                ---------------------                        
held for at least one year, any gain realized on disposition of the Shares will
be treated as long-term capital gain for federal income tax purposes. In the
case of an ISO, if Shares transferred pursuant to the Option are held for at
least one year after exercise and are disposed of at least two years after the
date of grant, any gain realized on disposition of the Shares will also be
treated as long-term capital gain for federal income tax purposes. If Shares
purchased under an ISO are disposed of within such one-year period or within two
years after the date of grant, any gain realized on such disposition will be
treated as compensation income (taxable at ordinary income rates) to the extent
of the difference between the Exercise Price and the lesser of (1) the fair
market value of the Shares on the date of exercise, or (2) the sale price of the
Shares.

          (v)   Notice of Disqualifying Disposition of ISO Shares.  If the
                ------------------------------------------------- 
Option granted to Optionee herein is an ISO, and if Optionee sells or otherwise
disposes of any of the Shares acquired pursuant to the ISO on or before the
later of (1) the date two years after the date of grant, or (2) the date one
year after the date of exercise, the Optionee shall immediately notify the
Company in writing of such disposition. Optionee agrees that Optionee may be
subject to income tax withholding by the Company on the compensation income
recognized by the Optionee.

          (vi)  Section 83(b) Election for Unvested Shares Purchased Pursuant to
                ----------------------------------------------------------------
Nonqualified Stock Options.  With respect to the exercise of a nonqualified
- --------------------------                                                 
stock option for unvested Shares, an election may be filed by the Optionee with
the Internal Revenue Service within 30 days of the purchase of the Shares,
                             --------------                               
electing pursuant to Section 83(b) of the Code to be taxed currently on any
difference between the purchase price of the Shares and their Fair Market Value
on the date of purchase.  This will result in a recognition of taxable income to
the Optionee on the date of exercise, measured by the excess, if any, of the
fair market value of the Shares, at the time the Option is exercised over the
purchase price for the Shares.  Absent such an election, taxable income will be
measured and recognized by Optionee at the time or times on which the Company's
Repurchase Option lapses.  Optionee is strongly encouraged to seek the advice of
his or her own tax consultants in connection with the purchase of the Shares and

                                      -6-

 
the advisability of filing of the Election under Section 83(b) and similar tax
provisions.  A form of Election under Section 83(b) is attached hereto as
Exhibit C-5 for reference.

          (vii) Section 83(b) Election for Unvested Shares Purchased Pursuant
                -------------------------------------------------------------
to Incentive Stock Options.  With respect to the exercise of an incentive stock
- --------------------------                                                     
option for unvested Shares, an election may be filed by the Optionee with the
Internal Revenue Service within 30 days of the purchase of the Shares, electing
                         --------------                                        
pursuant to Section 83(b) of the Code to be taxed currently on any difference
between the purchase price of the Shares and their Fair Market Value on the date
of purchase for alternative minimum tax purposes.  This will result in a
recognition of income to the Optionee on the date of exercise, for alternative
minimum tax purposes, measured by the excess, if any, of the fair market value
of the Shares, at the time the option is exercised, over the purchase price for
the Shares.  Absent such an election, alternative minimum taxable income will be
measured and recognized by Optionee at the time or times on which the Company's
Repurchase Option lapses.  Optionee is strongly encouraged to seek the advice of
his or her tax consultants in connection with the purchase of the Shares and the
advisability of filing of the Election under Section 83(b) and similar tax
provisions.  A form of Election under Section 83(b) for alternative minimum tax
purposes is attached hereto as Exhibit C-5 for reference.

      OPTIONEE ACKNOWLEDGES THAT IT IS OPTIONEE'S SOLE RESPONSIBILITY AND NOT
THE COMPANY'S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b), EVEN IF OPTIONEE
REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON OPTIONEE'S
BEHALF.


                                       PointCast Incorporated

                                           /s/ David Dorman
                                       By:_______________________________

                                      -7-

 
      OPTIONEE ACKNOWLEDGES AND AGREES THAT THE VESTING OF SHARES PURSUANT TO
THE OPTION HEREOF IS EARNED ONLY BY CONTINUING CONSULTANCY OR EMPLOYMENT AT THE
WILL OF THE COMPANY (NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS
OPTION OR ACQUIRING SHARES HEREUNDER).  OPTIONEE FURTHER ACKNOWLEDGES AND AGREES
THAT NOTHING IN THIS AGREEMENT, NOR IN THE COMPANY'S STOCK OPTION PLAN WHICH IS
INCORPORATED HEREIN BY REFERENCE, SHALL CONFER UPON OPTIONEE ANY RIGHT WITH
RESPECT TO CONTINUATION OF EMPLOYMENT OR CONSULTANCY BY THE COMPANY, NOR SHALL
IT INTERFERE IN ANY WAY WITH OPTIONEE'S RIGHT OR THE COMPANY'S RIGHT TO
TERMINATE OPTIONEE'S EMPLOYMENT OR CONSULTANCY AT ANY TIME, WITH OR WITHOUT
CAUSE.


      Optionee acknowledges receipt of a copy of the Plan and represents that he
is familiar with the terms and provisions thereof, and hereby accepts this
Option subject to all of the terms and provisions thereof.  Optionee has
reviewed the Plan and this Option in their entirety, has had an opportunity to
obtain the advice of counsel prior to executing this Option and fully
understands all provisions of the Option.  Optionee hereby agrees to accept as
binding, conclusive and final all decisions or interpretations of the
Administrator upon any questions arising under the Plan or this Option.
Optionee further agrees to notify the Company upon any change in the residence
address indicated below.

          12/30/97              /s/ Philip J. Koen
Dated: _____________________    _____________________________________
                                Optionee
 
                                Residence Address:

                                _____________________________________

                                _____________________________________

                                _____________________________________

                                      -8-

 
                                   EXHIBIT A
                                   ---------

                                1994 STOCK PLAN

                                EXERCISE NOTICE


PointCast Incorporated
501 Macara Ave.
Sunnyvale, CA 94806
Attn: Secretary

          Exercise of Option.  Effective as of today, October 30, 1997, the
          ------------------                                                 
undersigned ("Optionee") hereby elects to exercise Optionee's option to purchase
200,000 shares of the Common Stock (the "Shares") of  PointCast Incorporated
(the "Company") under and pursuant to the 1994 Stock Plan, as amended (the
"Plan") and the [_] Incentive [X] Nonstatutory Stock Option Agreement (the 
"Option Agreement") dated May 19, 1997.

          Representations of Optionee.  Optionee acknowledges that Optionee has
          ---------------------------                                          
received, read and understood the Plan and the Option Agreement and agrees to
abide by and be bound by their terms and conditions.

          Rights as Shareholder.  Until the stock certificate evidencing such
          ---------------------                                              
Shares is issued (as evidenced by the appropriate entry on the books of the
Company or of a duly authorized transfer agent of the Company), no right to vote
or receive dividends or any other rights as a shareholder shall exist with
respect to the Optioned Stock, notwithstanding the exercise of the Option.  The
Company shall issue (or cause to be issued) such stock certificate promptly
after the Option is exercised.  No adjustment will be made for a dividend or
other right for which the record date is prior to the date the stock certificate
is issued, except as provided in Section 12 of the Plan.
 
          Optionee shall enjoy rights as a shareholder until such time as
Optionee disposes of the Shares or the Company and/or its assignee(s) exercises
the Right of First Refusal hereunder.  Upon such exercise, Optionee shall have
no further rights as a holder of the Shares so purchased except the right to
receive payment for the Shares so purchased in accordance with the provisions of
this Agreement, and Optionee shall forthwith cause the certificate(s) evidencing
the Shares so purchased to be surrendered to the Company for transfer or
cancellation.

          Company's Right of First Refusal.  Before any Shares held by Optionee
          --------------------------------                                     
or any transferee (either being sometimes referred to herein as the "Holder")
may be sold or otherwise transferred (including transfer by gift or operation of
law), the Company or its assignee(s) shall have a right of first refusal to
purchase the Shares on the terms and conditions set forth in this Section (the
"Right of First Refusal").

          Notice of Proposed Transfer.  The Holder of the Shares shall
          ---------------------------                                 
deliver to the Company a written notice (the "Notice") stating:  (i) the
Holder's bona fide intention to sell or otherwise transfer such Shares; (ii) the
name of each proposed purchaser or other transferee ("Proposed Transferee");
(iii) the number of Shares to be transferred to each Proposed Transferee; and
(iv) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Shares (the "Offered Price"), and the Holder shall
offer the Shares at the Offered Price to the Company or its assignee(s).

 
          Exercise of Right of First Refusal.  At any time within thirty
          ----------------------------------                            
(30) days after receipt of the Notice, the Company and/or its assignee(s) may,
by giving written notice to the Holder, elect to purchase all, but not less than
all, of the Shares proposed to be transferred to any one or more of the Proposed
Transferees, at the purchase price determined in accordance with subsection (c)
below.

          Purchase Price.  The purchase price ("Purchase Price") for the
          --------------                                                
Shares purchased by the Company or its assignee(s) under this Section shall be
the Offered Price.  If the Offered Price includes consideration other than cash,
the cash equivalent value of the non-cash consideration shall be determined by
the Board of Directors of the Company in good faith.

          Payment.  Payment of the Purchase Price shall be made, at the
          -------                                                      
option of the Company or its assignee(s), in cash (by check), by cancellation of
all or a portion of any outstanding indebtedness of the Holder to the Company
(or, in the case of repurchase by an assignee, to the assignee), or by any
combination thereof within 30 days after receipt of the Notice or in the manner
and at the times set forth in the Notice.

          Holder's Right to Transfer.  If all of the Shares proposed in the
          --------------------------                                       
Notice to be transferred to a given Proposed Transferee are not purchased by the
Company and/or its assignee(s) as provided in this Section, then the Holder may
sell or otherwise transfer such Shares to that Proposed Transferee at the
Offered Price or at a higher price, provided that such sale or other transfer is
consummated within 120 days after the date of the Notice and provided further
that any such sale or other transfer is effected in accordance with any
applicable securities laws and the Proposed Transferee agrees in writing that
the provisions of this Section shall continue to apply to the Shares in the
hands of such Proposed Transferee.  If the Shares described in the Notice are
not transferred to the Proposed Transferee within such period, a new Notice
shall be given to the Company, and the Company and/or its assignees shall again
be offered the Right of First Refusal before any Shares held by the Holder may
be sold or otherwise transferred.

          Exception for Certain Family Transfers.  Anything to the contrary
          --------------------------------------                           
contained in this Section notwithstanding, the transfer of any or all of the
Shares during the Optionee's lifetime or on the Optionee's death by will or
intestacy to the Optionee's immediate family or a trust for the benefit of the
Optionee's immediate family shall be exempt from the provisions of this Section.
"Immediate Family" as used herein shall mean spouse, lineal descendant or
antecedent, father, mother, brother or sister.  In such case, the transferee or
other recipient shall receive and hold the Shares so transferred subject to the
provisions of this Section, and there shall be no further transfer of such
Shares except in accordance with the terms of this Section.

          Termination of Right of First Refusal.  The Right of First Refusal
          -------------------------------------                             
shall terminate as to any Shares 90 days after the first sale of Common Stock of
the Company to the general public pursuant to a registration statement filed
with and declared effective by the Securities and Exchange Commission under the
Securities Act of 1933, as amended.

          Tax Consultation.  Optionee understands that Optionee may suffer
          ----------------                                                
adverse tax consequences as a result of Optionee's purchase or disposition of
the Shares.  Optionee represents that Optionee has consulted with any tax
consultants Optionee deems advisable in connection with the purchase or
disposition of the Shares and that Optionee is not relying on the Company for
any tax advice.

                                       2

 
          Restrictive Legends and Stop-Transfer Orders.
          -------------------------------------------- 

              Legends.  Optionee understands and agrees that the Company shall
              -------                                                         
cause the legends set forth below or legends substantially equivalent thereto,
to be placed upon any certificate(s) evidencing ownership of the Shares together
with any other legends that may be required by state or federal securities laws:

          THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE
          SECURITIES ACT OF 1933 (THE "ACT") AND MAY NOT BE OFFERED, SOLD OR
          OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL
          REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL IN FORM AND
          SUBSTANCE SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER,
          SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE THEREWITH.

          THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
          RESTRICTIONS ON TRANSFER AND RIGHT OF FIRST REFUSAL OPTIONS HELD BY
          THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE
          BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF
          WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER.  SUCH
          TRANSFER RESTRICTIONS AND RIGHT OF FIRST REFUSAL ARE BINDING ON
          TRANSFEREES OF THESE SHARES.

          IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS SECURITY, OR
          ANY INTEREST THEREIN, OR TO RECEIVE ANY CONSIDERATION THEREFOR,
          WITHOUT THE PRIOR WRITTEN CONSENT OF THE COMMISSIONER OF CORPORATIONS
          OF THE STATE OF CALIFORNIA, EXCEPT AS PERMITTED IN THE COMMISSIONER'S
          RULES.

          Optionee understands that transfer of the Shares may be restricted by
Section 260.141.11 of the Rules of the California Corporations Commissioner, a
copy of which is attached to Exhibit B, the Investment Representation Statement.

              Stop-Transfer Notices.  Optionee agrees that, in order to ensure
              ---------------------                                           
compliance with the restrictions referred to herein, the Company may issue
appropriate "stop transfer" instructions to its transfer agent, if any, and
that, if the Company  transfers its own securities, it may make appropriate
notations to the same effect in its own records.

              Refusal to Transfer.  The Company shall not be required (i) to
              -------------------                                           
transfer on its books any Shares that have been sold or otherwise transferred in
violation of any of the provisions of this Agreement or (ii) to treat as owner
of such Shares or to accord the right to vote or pay dividends to any purchaser
or other transferee to whom such Shares shall have been so transferred.

          Successors and Assigns.  The Company may assign any of its rights
          ----------------------                                           
under this Agreement to single or multiple assignees, and this Agreement shall
inure to the benefit of the successors and assigns of the 


                                       3

 
Company. Subject to the restrictions on transfer herein set forth, this
Agreement shall be binding upon Optionee and his or her heirs, executors,
administrators, successors and assigns.

          Interpretation.  Any dispute regarding the interpretation of this
          --------------                                                   
Agreement shall be submitted by Optionee or by the Company forthwith to the
Company's Board of Directors or the committee thereof that administers the Plan,
which shall review such dispute at its next regular meeting. The resolution of
such a dispute by the Board or committee shall be final and binding on the
Company and on Optionee.

          Governing Law; Severability.  This Agreement shall be governed by and
          ---------------------------                                          
construed in accordance with the laws of the State of California excluding that
body of law pertaining to conflicts of law.  Should any provision of this
Agreement be determined by a court of law to be illegal or unenforceable, the
other provisions shall nevertheless remain effective and shall remain
enforceable.

          Notices.  Any notice required or permitted hereunder shall be given in
          -------                                                               
writing and shall be deemed effectively given upon personal delivery or upon
deposit in the United States mail by certified mail, with postage and fees
prepaid, addressed to the other party at its address as shown below beneath its
signature, or to such other address as such party may designate in writing from
time to time to the other party.

          Further Instruments.  The parties agree to execute such further
          -------------------                                            
instruments and to take such further action as may be reasonably necessary to
carry out the purposes and intent of this Agreement.

          Delivery of Payment.  Optionee herewith delivers to the Company the
          -------------------                                                
full Exercise Price for the Shares.

          Entire Agreement.  The Plan and Notice of Grant/Option Agreement are
          ----------------                                                    
incorporated herein by reference.  This Agreement, the Plan, the Option
Agreement, the Restricted Stock Purchase Agreement, and the Investment
Representation Statement constitute the entire agreement of the parties and
supersede in their entirety all prior undertakings and agreements of the Company
and Optionee with respect to the subject matter hereof.


Submitted by:                                        Accepted by:

OPTIONEE:                            PointCast Incorporated

    /s/ Philip J. Koen                      /s/ David Dorman
_______________________________      By:_________________________________
                                        
                                          President
                                     Its:________________________________


Address:                             Address:
- -------                              ------- 

22000 Dorsey Way                     501 Macara Ave
Saratoga, CA 95070                   Sunnyvale, CA 94086


                                       4

 
                                   EXHIBIT B
                                   ---------

                      INVESTMENT REPRESENTATION STATEMENT

 
OPTIONEE    :  Philip J. Koen
 
COMPANY     :  POINTCAST INCORPORATED
 
SECURITY    :  COMMON STOCK

AMOUNT      :  200,000 SHARES

DATE        :  October 30, 1997


In connection with the purchase of the above-listed Securities, the undersigned
Optionee represents to the Company the following:

          (a) Optionee is aware of the Company's business affairs and financial
condition and has acquired sufficient information about the Company to reach an
informed and knowledgeable decision to acquire the Securities.  Optionee is
acquiring these Securities for investment for Optionee's own account only and
not with a view to, or for resale in connection with, any "distribution" thereof
within the meaning of the Securities Act of 1933, as amended (the "Securities
Act").

          (b) Optionee acknowledges and understands that the Securities
constitute "restricted securities" under the Securities Act and have not been
registered under the Securities Act in reliance upon a specific exemption
therefrom, which exemption depends upon, among other things, the bona fide
nature of Optionee's investment intent as expressed herein.  In this connection,
Optionee understands that, in the view of the Securities and Exchange
Commission, the statutory basis for such exemption may be unavailable if
Optionee's representation was predicated solely upon a present intention to hold
these Securities for the minimum capital gains period specified under tax
statutes, for a deferred sale, for or until an increase or decrease in the
market price of the Securities, or for a period of one year or any other fixed
period in the future.  Optionee further understands that the Securities must be
held indefinitely unless they are subsequently registered under the Securities
Act or an exemption from such registration is available.  Optionee further
acknowledges and understands that the Company is under no obligation to register
the Securities.  Optionee understands that the certificate evidencing the
Securities will be imprinted with a legend which prohibits the transfer of the
Securities unless they are registered or such registration is not required in
the opinion of counsel satisfactory to the Company, a legend prohibiting their
transfer without the consent of the Commissioner of Corporations of the State of
California and any other legend required under applicable state securities laws.

          (c) Optionee is familiar with the provisions of Rule 701 and Rule 144,
each promulgated under the Securities Act, which, in substance, permit limited
public resale of "restricted securities" acquired, directly or indirectly from
the issuer thereof, in a non-public offering subject to the satisfaction of
certain conditions.  Rule 701 provides that if the issuer qualifies under Rule
701 at the time of the grant of the Option to the Optionee, the exercise will be
exempt from registration under the Securities Act.  In the event the Company
becomes subject to the reporting requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer
period as any market stand-off agreement may require) the Securities exempt
under Rule 701 may be resold, subject to the satisfaction of certain of the
conditions specified by Rule 144, including:  (1) the resale being made through
a broker in an unsolicited "broker's 

 
transaction" or in transactions directly with a market maker (as said term is
defined under the Securities Exchange Act of 1934); and, in the case of an
affiliate, (2) the availability of certain public information about the Company,
(3) the amount of Securities being sold during any three month period not
exceeding the limitations specified in Rule 144(e), and (4) the timely filing of
a Form 144, if applicable.

      In the event that the Company does not qualify under Rule 701 at the time
of grant of the Option, then the Securities may be resold in certain limited
circumstances subject to the provisions of Rule 144, which requires the resale
to occur not less than two years after the later of the date the Securities were
sold by the Company or the date the Securities were sold by an affiliate of the
Company, within the meaning of Rule 144; and, in the case of acquisition of the
Securities by an affiliate, or by a non-affiliate who subsequently holds the
Securities less than three years, the satisfaction of the conditions set forth
in sections (1), (2), (3) and (4) of the paragraph immediately above.

          (d) Optionee further understands that in the event all of the
applicable requirements of Rule 701 or 144 are not satisfied, registration under
the Securities Act, compliance with Regulation A, or some other registration
exemption will be required; and that, notwithstanding the fact that Rules 144
and 701 are not exclusive, the Staff of the Securities and Exchange Commission
has expressed its opinion that persons proposing to sell private placement
securities other than in a registered offering and otherwise than pursuant to
Rules 144 or 701 will have a substantial burden of proof in establishing that an
exemption from registration is available for such offers or sales, and that such
persons and their respective brokers who participate in such transactions do so
at their own risk.  Optionee understands that no assurances can be given that
any such other registration exemption will be available in such event.

          (e) Optionee understands that the certificate evidencing the
Securities will be imprinted with a legend which prohibits the transfer of the
Securities without the consent of the Commissioner of Corporations of
California.  Optionee has read the applicable Commissioner's Rules with respect
to such restriction, a copy of which is attached.

                            Signature of Optionee:

                            /s/ Philip J. Koen
                            __________________________________
                            
                                   
                            Date:  12/30, 1997

                                       2


 
                                  ATTACHMENT 1
              STATE OF CALIFORNIA - CALIFORNIA ADMINISTRATIVE CODE
              ----------------------------------------------------
        Title 10.  Investment - Chapter 3.  Commissioner of Corporations

   260.141.11:  Restriction on Transfer.  (a)  The issuer of any security upon
   ----------   -----------------------                                       
which a restriction on transfer has been imposed pursuant to Sections 260.102.6,
260.141.10 or 260.534 shall cause a copy of this section to be delivered to each
issuee or transferee of such security at the time the certificate evidencing the
security is delivered to the issuee or transferee.

   (b) It is unlawful for the holder of any such security to consummate a sale
or transfer of such security, or any interest therein, without the prior written
consent of the Commissioner (until this condition is removed pursuant to Section
260.141.12 of these rules), except:

      (1) to the issuer;
      (2) pursuant to the order or process of any court;
      (3) to any person described in Subdivision (i) of Section 25102 of the
Code or Section 260.105.14 of these rules;
      (4) to the transferor's ancestors, descendants or spouse, or any custodian
or trustee for the account of the transferor or the transferor's ancestors,
descendants, or spouse; or to a transferee by a trustee or custodian for the
account of the transferee or the transferee's ancestors, descendants or spouse;
      (5) to holders of securities of the same class of the same issuer;
      (6) by way of gift or donation inter vivos or on death;
      (7) by or through a broker-dealer licensed under the Code (either acting
as such or as a finder) to a resident of a foreign state, territory or country
who is neither domiciled in this state to the knowledge of the broker-dealer,
nor actually present in this state if the sale of such securities is not in
violation of any securities law of the foreign state, territory or country
concerned;
      (8) to a broker-dealer licensed under the Code in a principal transaction,
or as an underwriter or member of an underwriting syndicate or selling group;
      (9) if the interest sold or transferred is a pledge or other lien given by
the purchaser to the seller upon a sale of the security for which the
Commissioner's written consent is obtained or under this rule not required;
      (10) by way of a sale qualified under Sections 25111, 25112, 25113 or
25121 of the Code, of the securities to be transferred, provided that no order
under Section 25140 or subdivision (a) of Section 25143 is in effect with
respect to such qualification;
      (11) by a corporation to a wholly owned subsidiary of such corporation, or
by a wholly owned subsidiary of a corporation to such corporation;
      (12) by way of an exchange qualified under Section 25111, 25112 or 25113
of the Code, provided that no order under Section 25140 or subdivision (a) of
Section 25143 is in effect with respect to such qualification;
      (13) between residents of foreign states, territories or countries who are
neither domiciled nor actually present in this state;
      (14) to the State Controller pursuant to the Unclaimed Property Law or to
the administrator of the unclaimed property law of another state; or
      (15) by the State Controller pursuant to the Unclaimed Property Law or by
the administrator of the unclaimed property law of another state if, in either
such case, such person (i) discloses to potential purchasers at the sale that
transfer of the securities is restricted under this rule, (ii) delivers to each
purchaser a copy of this rule, and (iii) advises the Commissioner of the name of
each purchaser;
      (16) by a trustee to a successor trustee when such transfer does not
involve a change in the beneficial ownership of the securities;
      (17)  by way of an offer and sale of outstanding securities in an issuer
transaction that is subject to the qualification requirement of Section 25110 of
the Code but exempt from that qualification requirement by subdivision (f) of
Section 25102; provided that any such transfer is on the condition that any
certificate evidencing the security issued to such transferee shall contain the
legend required by this section.

   (c) The certificates representing all such securities subject to such a
restriction on transfer, whether upon initial issuance or upon any transfer
thereof, shall bear on their face a legend, prominently stamped or printed
thereon in capital letters of not less than 10-point size, reading as follows:

        "IT IS UNLAWFUL TO CONSUMMATE A SALE OR TRANSFER OF THIS SECURITY, OR
ANY INTEREST THEREIN, OR TO RECEIVE ANY CONSIDERATION THEREFOR, WITHOUT THE
PRIOR WRITTEN CONSENT OF THE COMMISSIONER OF CORPORATIONS OF THE STATE OF
CALIFORNIA, EXCEPT AS PERMITTED IN THE COMMISSIONER'S RULES."

                                       3

 
                                  EXHIBIT C-1
                                  -----------

                                1994 STOCK PLAN

                      RESTRICTED STOCK PURCHASE AGREEMENT


     THIS AGREEMENT is made between Philip J. Koen (the "Purchaser") and
PointCast Incorporated (the "Company") as of May 19, 1997.


                                    RECITALS
                                    --------

     (1) Pursuant to the exercise of the stock option granted to Purchaser under
the Company's 1994 Stock Plan and pursuant to the Stock Option Agreement (the
"Option Agreement") dated May 19, 1997 by and between the Company and Purchaser
with respect to such grant, which Option Agreement is hereby incorporated by
reference, Purchaser has elected to purchase Two Hundred Thousand (200,000)
shares which have not become vested under the vesting schedule set forth in the
Option Agreement ("Unvested Shares"). The Unvested Shares and the shares subject
to the Option Agreement which have become vested are sometimes collectively
referred to herein as the "Shares".

     (2) As required by the Option Agreement, as a condition to Purchaser's
election to exercise the option, Purchaser must execute this Restricted Stock
Purchase Agreement, which sets forth the rights and obligations of the parties
with respect to Shares acquired upon exercise of the Option.

     1.   Repurchase Option.
          ----------------- 

          (a) If Purchaser's Continuous Status as an Employee or Consultant is
terminated for any reason, including for cause, death, and disability, the
Company shall have the right and option to purchase from Purchaser, or
Purchaser's personal representative, as the case may be, all of the Purchaser's
Unvested Shares as of the date of such termination at the price paid by the
Purchaser for such Shares (the "Repurchase Option").

          (b) Upon the occurrence of such a termination, the Company may
exercise its Repurchase Option by delivering personally or by registered mail,
to Purchaser (or his transferee or legal representative, as the case may be),
within ninety (90) days of the termination, a notice in writing indicating the
Company's intention to exercise the Repurchase Option and setting forth a date
for closing not later than thirty (30) days from the mailing of such notice. The
closing shall take place at the Company's office.  At the closing, the holder of
the certificates for the Unvested Shares being transferred shall deliver the
stock certificate or certificates evidencing the Unvested Shares, and the
Company shall deliver the purchase price therefor.

 
          (c) At its option, the Company may elect to make payment for the
Unvested Shares to a bank selected by the Company.  The Company shall avail
itself of this option by a notice in writing to Purchaser stating the name and
address of the bank, date of closing, and waiving the closing at the Company's
office.

          (d) If the Company does not elect to exercise the Repurchase Option
conferred above by giving the requisite notice within ninety (90) days following
the termination, the Repurchase Option shall terminate.

     2.   Transferability of the Shares; Escrow.
          ------------------------------------- 

          (a) Purchaser hereby authorizes and directs the secretary of the
Company, or such other person designated by the Company, to transfer the
Unvested Shares as to which the Repurchase Option has been exercised from
Purchaser to the Company.

          (b) To insure the availability for delivery of Purchaser's Unvested
Shares upon repurchase by the Company pursuant to the Repurchase Option under
Section 1, Purchaser hereby appoints the secretary, or any other person
designated by the Company as escrow agent, as its attorney-in-fact to sell,
assign and transfer unto the Company, such Unvested Shares, if any, repurchased
by the Company pursuant to the Repurchase Option and shall, upon execution of
this Agreement, deliver and deposit with the secretary of the Company, or such
other person designated by the Company, the share certificates representing the
Unvested Shares, together with the stock assignment duly endorsed in blank,
attached hereto as Exhibit C-2.  The Unvested Shares and stock assignment shall
be held by the secretary in escrow, pursuant to the Joint Escrow Instructions of
the Company and Purchaser attached as Exhibit C-3 hereto, until the Company
exercises its purchase right as provided in Section 1, until such Unvested
Shares are vested, or until such time as this Agreement no longer is in effect.
Upon vesting of the Unvested Shares, the escrow agent shall promptly deliver to
the Purchaser the certificate or certificates representing such Shares in the
escrow agent's possession belonging to the Purchaser, and the escrow agent shall
be discharged of all further obligations hereunder; provided, however, that the
escrow agent shall nevertheless retain such certificate or certificates as
escrow agent if so required pursuant to other restrictions imposed pursuant to
this Agreement.

          (c) The Company, or its designee, shall not be liable for any act it
may do or omit to do with respect to holding the Shares in escrow and while
acting in good faith and in the exercise of its judgment.

          (d) Transfer or sale of the Shares is subject to restrictions on
transfer imposed by any applicable state and federal securities laws.  Any
transferee shall hold such Shares subject to all the provisions hereof and the
Exercise Notice executed by the Purchaser with respect to any Unvested Shares
purchased by Purchaser and shall acknowledge the same by signing a copy of this
Agreement.

                                      -3-

 
     3.   Ownership, Voting Rights, Duties.  This Agreement shall not affect in
          --------------------------------                                     
any way the ownership, voting rights or other rights or duties of Purchaser,
except as specifically provided herein.

     4.   Legends.  The share certificate evidencing the Shares issued hereunder
          -------                                                               
shall be endorsed with the following legend (in addition to any legend required
under applicable state securities laws):

     THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN
RESTRICTIONS UPON TRANSFER AND RIGHTS OF REPURCHASE AS SET FORTH IN AN AGREEMENT
BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE
SECRETARY OF THE COMPANY.

     5.   Adjustment for Stock Split.  All references to the number of Shares
          --------------------------                                         
and the purchase price of the Shares in this Agreement shall be appropriately
adjusted to reflect any stock split, stock dividend or other change in the
Shares which may be made by the Company after the date of this Agreement.

     6.   Notices.  Notices required hereunder shall be given in person or by
          -------                                                            
registered mail to the address of Purchaser shown on the records of the Company,
and to the Company at their respective principal executive offices.

     7.   Survival of Terms.  This Agreement shall apply to and bind Purchaser
          -----------------                                                   
and the Company and their respective permitted assignees and transferees, heirs,
legatees, executors, administrators and legal successors.

     8.   Section 83(b) Elections.
          ----------------------- 

          (a) Election for Unvested Shares Purchased Pursuant to Nonqualified
              ---------------------------------------------------------------
Stock Options.  Purchaser hereby acknowledges that he or she has been informed
- -------------                                                                 
that, with respect to the exercise of a nonqualified stock option for Unvested
Shares, that unless an election is filed by the Purchaser with the Internal
Revenue Service and, if necessary, the proper state taxing authorities, within
                                                                        ------
30 days of the purchase of the Shares, electing pursuant to Section 83(b) of the
- -------                                                                         
Code to be taxed currently on any difference between the purchase price of the
Shares and their fair market value on the date of purchase, there will be a
recognition of taxable income to the Optionee, measured by the excess, if any,
of the fair market value of the Shares, at the time the Company's Repurchase
Option lapses over the purchase price for the Shares.  Optionee represents that
Optionee has consulted any tax consultant(s) Optionee deems advisable in
connection with the purchase of the Shares or the filing of the Election under
Section 83(b).  A form of Election under Section 83(b) is attached hereto as
Exhibit C-4 for reference.

          (b) Election for Unvested Shares Purchased Pursuant to Incentive Stock
              ------------------------------------------------------------------
Options.  Purchaser hereby acknowledges that he or she has been informed that,
- -------                                                                       
with respect to the exercise of an incentive stock option for Unvested Shares,
that unless an election is filed by the Purchaser with 

                                      -4-


 
the Internal Revenue Service within 30 days of the purchase of the Shares, 
                             --------------                          
electing pursuant to Section 83(b) of the Code to be taxed currently on any
difference between the purchase price of the Shares and their fair market value
on the date of purchase, there will be a recognition of income to the Optionee,
for alternative minimum tax purposes, measured by the excess, if any, of the
fair market value of the Shares, at the time the Company's Repurchase Option
lapses over the purchase price for the Shares. Optionee represents that Optionee
has consulted any tax consultant(s) Optionee deems advisable in connection with
the purchase of the Shares or the filing of the Election under Section 83(b) and
similar tax provisions. A form of Election under Section 83(b) for alternative
minimum tax purposes is attached hereto as Exhibit C-5 for reference.

     PURCHASER ACKNOWLEDGES THAT IT IS PURCHASER'S SOLE RESPONSIBILITY AND NOT
THE COMPANY'S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b), EVEN IF PURCHASER
REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON PURCHASER'S
BEHALF.

     9.   Representations.  Purchaser has reviewed with his own tax advisors the
          ---------------                                                       
federal, state, local and foreign tax consequences of this investment and the
transactions contemplated by this Agreement.  Purchaser is relying solely on
such advisors and not on any statements or representations of the Company or any
of its agents.  Purchaser understands that he (and not the Company) shall be
responsible for his own tax liability that may arise as a result of this
investment or the transactions contemplated by this Agreement.

     10.  Governing Law.  This Agreement shall be governed by and construed and
          -------------                                                        
enforced in accordance with California law.

     Purchaser represents that he has read this Agreement and is familiar with
its terms and provisions.  Purchaser hereby agrees to accept as binding,
conclusive and final all decisions or interpretations of the Board upon any
questions arising under this Agreement.

                                      -5-

 
     IN WITNESS WHEREOF, this Agreement is deemed made as of the date first set
forth above.

                              "COMPANY"

                              PointCast Incorporated

                                  /s/ David Dorman
                              By:______________________________________

                                     President & CEO
                              Title: ____________________________________



                              "PURCHASER"

                              /s/ Philip J. Koen
                              _________________________________________
                              Philip J. Koen

                              Address:


                                      -6-

 
                                  EXHIBIT C-2
                                  -----------

                      ASSIGNMENT SEPARATE FROM CERTIFICATE



     FOR VALUE RECEIVED I, __________________________, hereby sell, assign and
transfer unto
________________________________________________________________________________
________________ (__________) shares of the Common Stock of PointCast
Incorporated standing in my name of the books of said corporation represented by
Certificate No. _____ herewith and do hereby irrevocably constitute and appoint
_____________________________________________ to transfer the said stock on the
books of the within named corporation with full power of substitution in the
premises.

     This Stock Assignment may be used only in accordance with the Restricted
Stock Purchase Agreement between________________________ and the undersigned
dated ______________, 199__.


Dated: _______________, 199__

                                              /s/ Philip J. Koen
                                    Signature:______________________________
                                              Philip J. Koen



INSTRUCTIONS:  Please do not fill in any blanks other than the signature line.
The purpose of this assignment is to enable the Company to exercise its
"repurchase option," as set forth in the Agreement, without requiring additional
signatures on the part of the Purchaser.

 
                                  EXHIBIT C-3
                                  -----------

                           JOINT ESCROW INSTRUCTIONS
                           -------------------------


                                                            _____________, 199__


PointCast Incorporated
Judith O'Brien
Asst. Corporate Secretary
c/o  Wilson Sonsini Goodrich & Rosati
     650 Page Mill Road
     Palo Alto, CA  94304-1050

Dear Assistant Corporate Secretary:

     As Escrow Agent for both PointCast Incorporated (the "Company"), and the
undersigned purchaser of stock of the Company (the "Purchaser"), you are hereby
authorized and directed to hold the documents delivered to you pursuant to the
terms of that certain Restricted Stock Purchase Agreement ("Agreement") between
the Company and the undersigned, in accordance with the following instructions:

     1.   In the event the Company and/or any assignee of the Company (referred
to collectively for convenience herein as the "Company") exercises the Company's
repurchase option set forth in the Agreement, the Company shall give to
Purchaser and you a written notice specifying the number of shares of stock to
be purchased, the purchase price, and the time for a closing hereunder at the
principal office of the Company.  Purchaser and the Company hereby irrevocably
authorize and direct you to close the transaction contemplated by such notice in
accordance with the terms of said notice.

     2.   At the closing, you are directed (a) to date the stock assignments
necessary for the transfer in question, (b) to fill in the number of shares
being transferred, and (c) to deliver same, together with the certificate
evidencing the shares of stock to be transferred, to the Company or its
assignee, against the simultaneous delivery to you of the purchase price (by
cash, a check, or some combination thereof) for the number of shares of stock
being purchased pursuant to the exercise of the Company's repurchase option.

     3.   Purchaser irrevocably authorizes the Company to deposit with you any
certificates evidencing shares of stock to be held by you hereunder and any
additions and substitutions to said shares as defined in the Agreement.
Purchaser does hereby irrevocably constitute and appoint you as Purchaser's
attorney-in-fact and agent for the term of this escrow to execute with respect
to such securities all documents necessary or appropriate to make such
securities negotiable and to complete any transaction herein contemplated,
including but not limited to the filing with any applicable state blue sky
authority of any required applications for consent to, or notice of transfer of,
the securities.  

 
Subject to the provisions of this paragraph 3, Purchaser shall exercise all
rights and privileges of a shareholder of the Company while the stock is held by
you.

     4.   Upon written request of the Purchaser, but no more than once per
calendar year, unless the Company's repurchase option has been exercised, you
will deliver to Purchaser a certificate or certificates representing so many
shares of stock as are not then subject to the Company's repurchase option.
Within 120 days after cessation of Purchaser's continuous employment by or
services to the Company, or any parent or subsidiary of the Company, you will
deliver to Purchaser a certificate or certificates representing the aggregate
number of shares held or issued pursuant to the Agreement and not purchased by
the Company or its assignees pursuant to exercise of the Company's repurchase
option.

     5.   If at the time of termination of this escrow you should have in your
possession any documents, securities, or other property belonging to Purchaser,
you shall deliver all of the same to Purchaser and shall be discharged of all
further obligations hereunder.

     6.   Your duties hereunder may be altered, amended, modified or revoked
only by a writing signed by all of the parties hereto.

     7.   You shall be obligated only for the performance of such duties as are
specifically set forth herein and may rely and shall be protected in relying or
refraining from acting on any instrument reasonably believed by you to be
genuine and to have been signed or presented by the proper party or parties.
You shall not be personally liable for any act you may do or omit to do
hereunder as Escrow Agent or as attorney-in-fact for Purchaser while acting in
good faith, and any act done or omitted by you pursuant to the advice of your
own attorneys shall be conclusive evidence of such good faith.

     8.   You are hereby expressly authorized to disregard any and all warnings
given by any of the parties hereto or by any other person or corporation,
excepting only orders or process of courts of law and are hereby expressly
authorized to comply with and obey orders, judgments or decrees of any court.
In case you obey or comply with any such order, judgment or decree, you shall
not be liable to any of the parties hereto or to any other person, firm or
corporation by reason of such compliance, notwithstanding any such order,
judgment or decree being subsequently reversed, modified, annulled, set aside,
vacated or found to have been entered without jurisdiction.

     9.   You shall not be liable in any respect on account of the identity,
authorities or rights of the parties executing or delivering or purporting to
execute or deliver the Agreement or any documents or papers deposited or called
for hereunder.

     10.  You shall not be liable for the outlawing of any rights under the
Statute of Limitations with respect to these Joint Escrow Instructions or any
documents deposited with you.

     11.  You shall be entitled to employ such legal counsel and other experts
as you may deem necessary properly to advise you in connection with your
obligations hereunder, may rely upon the advice of such counsel, and may pay
such counsel reasonable compensation therefor.

 
     12.  Your responsibilities as Escrow Agent hereunder shall terminate if you
shall cease to be an officer or agent of the Company or if you shall resign by
written notice to each party.  In the event of any such termination, the Company
shall appoint a successor Escrow Agent.

     13.  If you reasonably require other or further instruments in connection
with these Joint Escrow Instructions or obligations in respect hereto, the
necessary parties hereto shall join in furnishing such instruments.

     14.  It is understood and agreed that should any dispute arise with respect
to the delivery and/or ownership or right of possession of the securities held
by you hereunder, you are authorized and directed to retain in your possession
without liability to anyone all or any part of said securities until such
disputes shall have been settled either by mutual written agreement of the
parties concerned or by a final order, decree or judgment of a court of
competent jurisdiction after the time for appeal has expired and no appeal has
been perfected, but you shall be under no duty whatsoever to institute or defend
any such proceedings.

     15.  Any notice required or permitted hereunder shall be given in writing
and shall be deemed effectively given upon personal delivery or upon deposit in
the United States Post Office, by registered or certified mail with postage and
fees prepaid, addressed to each of the other parties thereunto entitled at the
following addresses or at such other addresses as a party may designate by ten
days' advance written notice to each of the other parties hereto.

          COMPANY:       PointCast Incorporated
                         501 Macara Ave.
                         Sunnyvale, CA 94086

          PURCHASER:     Philip J. Koen
                         __________________________________________
                         __________________________________________
                         __________________________________________

          ESCROW AGENT:  PointCast Incorporated
                         Judith O'Brien
                         Corporate Secretary
                         c/o    Wilson Sonsini Goodrich & Rosati
                                650 Page Mill Road
                                Palo Alto, CA  94304-1050

     16.  By signing these Joint Escrow Instructions, you become a party hereto
only for the purpose of said Joint Escrow Instructions; you do not become a
party to the Agreement.

     17.  This instrument shall be binding upon and inure to the benefit of the
parties hereto, and their respective successors and permitted assigns.

                                      -3-


 
     18.  These Joint Escrow Instructions shall be governed by, and construed
and enforced in accordance with, the laws of the State of California.

                              PointCast Incorporated

                                  /s/ David Dorman
                              By: ___________________________________

                                     President
                              Title: __________________________________

                                           /s/ Philip J. Koen
                              Purchaser:   _____________________________
                                              (Signature)

                              /s/ Jacklyn Karceski
                              _______________________________________
                              (Typed or Printed Name)


                                      -4-

 
                                  EXHIBIT C-4
                                  -----------
                          ELECTION UNDER SECTION 83(b)
                          ----------------------------
                      OF THE INTERNAL REVENUE CODE OF 1986
                      ------------------------------------

The undersigned taxpayer hereby elects, pursuant to Section 83(b) of the
Internal Revenue Code of 1986, as amended, to include in taxpayer's gross income
for the current taxable year the amount of any compensation taxable to taxpayer
in connection with taxpayer's receipt of the property described below:

1.   The name, address, taxpayer identification number and taxable year of the
     undersigned are as follows:

  NAME:          TAXPAYER:  Phil Koen  SPOUSE:

  ADDRESS:

  IDENTIFICATION NO.:   TAXPAYER:                  SPOUSE:

  TAXABLE YEAR:

2. The property with respect to which the election is made is described as
   follows:  ______________________________ shares (the "Shares") of the Common
   Stock of PointCast Incorporated (the "Company").

3. The date on which the property was transferred is:
  ____________________________, 19 ____.

4. The property is subject to the following restrictions:

  The Shares may not be transferred and are subject to forfeiture under the
  terms of an agreement between the taxpayer and the Company.  These
  restrictions lapse upon the satisfaction of certain conditions contained in
  such agreement.

5. The fair market value at the time of transfer, determined without regard to
   any restriction other than a restriction which by its terms will never lapse,
   of such property is:
     $______________________.

6. The amount (if any) paid for such property is:
     $______________________.

The undersigned has submitted a copy of this statement to the person for whom
the services were performed in connection with the undersigned's receipt of the
above-described property.  The transferee of such property is the person
performing the services in connection with the transfer of said property.

The undersigned understands that the foregoing election may not be revoked
- --------------------------------------------------------------------------
except with the consent of the Commissioner.
- ------------------------------------------- 

Dated:    ___________________, 199____
                                    Phil Koen, Taxpayer


The undersigned spouse of taxpayer joins in this election.

Dated:    ___________________, 199____
                          Spouse of Taxpayer

 
                                  EXHIBIT C-5
                                  -----------

                          ELECTION UNDER SECTION 83(b)
                          ----------------------------
                      OF THE INTERNAL REVENUE CODE OF 1986
                      ------------------------------------

The undersigned taxpayer hereby elects, pursuant to the provisions of Sections
55-56 and 83(b) of the Internal Revenue Code of 1986, as amended, to include in
taxpayer's alternative minimum taxable income for the current taxable year, as
compensation for services, the excess, if any, of the fair market value of the
property described below at the time of transfer over the amount paid for such
property.

1.  The name, address, taxpayer identification number and taxable year of the
    undersigned are as follows:

    NAME:          TAXPAYER:  Phil Koen
                                                   SPOUSE:

    ADDRESS:

    IDENTIFICATION NO.:      TAXPAYER:             SPOUSE:

    TAXABLE YEAR:

2.  The property with respect to which the election is made is described as
    follows:  ________________ shares (the "Shares") of the Common Stock of
    PointCast Incorporated (the "Company").

3.  The date on which the property was transferred is:  ___________________.

4.  The property is subject to the following restrictions:

    The Shares may be repurchased by the Company, or its assignee, at its
    original purchase price, on certain events. This right lapses with regard to
    a portion of the Shares over time.

5.  The fair market value at the time of transfer, determined without regard to
    any restriction other than a restriction which by its terms will never
    lapse, of such property is:

    $_______________

6.  The amount paid for such property is:   $_______________

The undersigned has submitted a copy of this statement to the person for whom
the services were performed in connection with the undersigned's receipt of the
above-described property.  The transferee of such property is the person
performing the services in connection with the transfer of said property.

The undersigned understands that the foregoing election may not be revoked
- --------------------------------------------------------------------------
except with the consent of the Commissioner.
- ------------------------------------------- 


Dated:   ___________________, 199____
                                  Taxpayer

The undersigned spouse of taxpayer joins in this election.

Dated:   ___________________, 199____

 
                                  EXHIBIT C-6
                                  -----------


                                PROMISSORY NOTE


$200,000

                                                                October 30, 1997

    FOR VALUE RECEIVED, Philip J. Koen promises to pay to PointCast Incorporated
                        --------------
(the "Company"), or order, the principal sum of $200,000, together with interest
on the unpaid principal hereof from the date hereof at the rate of six and one-
one hundreth percent (6.01%) per annum, compounded semiannually.

    Principal and interest shall be due and payable on October 30, 2001 or 
ninety (90) days following the date upon which the Executive's employment with
the Company terminates. Should the undersigned fail to make full payment of
principal or interest for a period of 10 days or more after the due date
thereof, the whole unpaid balance on this Note of principal and interest shall
become immediately due at the option of the holder of this Note. Payments of
principal and interest shall be made in lawful money of the United States of
America.

    The undersigned may at any time prepay all or any portion of the principal
or interest owing hereunder.

    This Note is subject to the terms of the Option, dated as of May 19, 1997.
This Note is secured in part by a pledge of the Company's Common Stock under the
terms of a Security Agreement of even date herewith and is subject to all the
provisions thereof.

    The holder of this Note shall have full recourse against the undersigned,
and shall not be required to proceed against the collateral securing this Note
in the event of default.

    In the event the undersigned shall cease to be an employee or consultant of
the Company for any reason, this Note shall, at the option of the Company, be
accelerated, and the whole unpaid balance on this Note of principal and accrued
interest shall be immediately due and payable.

    Should any action be instituted for the collection of this Note, the
reasonable costs and attorneys' fees therein of the holder shall be paid by the
undersigned.

                                  /s/ Philip J. Koen
                        Signature ____________________________________

                        Print Name: Philip J. Koen

 
                                                                               2

                                  EXHIBIT C-7
                                  -----------

                               SECURITY AGREEMENT



    This Security Agreement is made as of October 30, 1997 between PointCast
Incorporated ("Pledgee"), and Phil Koen ("Pledgor").


                                    Recitals
                                    --------

    Pursuant to Pledgor's election to purchase Shares under the Option Agreement
dated June 4, 1997 (the "Option"), between Pledgor and Pledgee under Pledgee's
1994 Stock Plan, and Pledgor's election under the terms of the Option to pay for
such shares with his promissory note (the "Note"), Pledgor has purchased 200,000
shares of Pledgee's Common Stock (the "Shares") at a price of $1.00 per share,
for a total purchase price of $200,000. The Note and the obligations thereunder
are as set forth in Exhibit C-6 to the Option.

    NOW, THEREFORE, it is agreed as follows:

    I.   Creation and Description of Security Interest.  In consideration of the
         ---------------------------------------------                          
transfer of the Shares to Pledgor under the Option Agreement, Pledgor, pursuant
to the California Commercial Code, hereby pledges all of such Shares (herein
sometimes referred to as the "Collateral") duly endorsed in blank or with
executed stock powers, and herewith delivers said certificate to the Secretary
of Pledgee ("Pledgeholder"), who shall hold said certificate subject to the
terms and conditions of this Security Agreement.

    The pledged stock (together with an executed blank stock assignment for use
in transferring all or a portion of the Shares to Pledgee if, as and when
required pursuant to this Security Agreement) shall be held by the Pledgeholder
as security for the repayment of the Note, and any extensions or renewals
thereof, to be executed by Pledgor pursuant to the terms of the Option, and the
Pledgeholder shall not encumber or dispose of such Shares except in accordance
with the provisions of this Security Agreement.

    II.  Pledgor's Representations and Covenants.  To induce Pledgee to enter
         ---------------------------------------                             
into this Security Agreement, Pledgor represents and covenants to Pledgee, its
successors and assigns, as follows:

         A.  Payment of Indebtedness.  Pledgor will pay the principal sum of the
             -----------------------                                            
Note secured hereby, together with interest thereon, at the time and in the
manner provided in the Note.

         B.  Encumbrances.  The Shares are free of all other encumbrances,
             ------------                                                 
defenses and liens, and Pledgor will not further encumber the Shares without the
prior written consent of Pledgee.

 
                                                                               3

         1.  Margin Regulations.  In the event that Pledgee's Common Stock is
             ------------------                                              
now or later becomes margin-listed by the Federal Reserve Board and Pledgee is
classified as a "lender" within the meaning of the regulations under Part 207 of
Title 12 of the Code of Federal Regulations ("Regulation G"), Pledgor agrees to
cooperate with Pledgee in making any amendments to the Note or providing any
additional collateral as may be necessary to comply with such regulations.

    III. Voting Rights.  During the term of this pledge and so long as all
         -------------                                                    
payments of principal and interest are made as they become due under the terms
of the Note, Pledgor shall have the right to vote all of the Shares pledged
hereunder.

    IV.  Stock Adjustments.  In the event that during the term of the pledge any
         -----------------                                                      
stock dividend, reclassification, readjustment or other changes are declared or
made in the capital structure of Pledgee, all new, substituted and additional
shares or other securities issued by reason of any such change shall be
delivered to and held by the Pledgee under the terms of this Security Agreement
in the same manner as the Shares originally pledged hereunder.  In the event of
substitution of such securities, Pledgor, Pledgee and Pledgeholder shall
cooperate and execute such documents as are reasonable so as to provide for the
substitution of such Collateral and, upon such substitution, references to
"Shares" in this Security Agreement shall include the substituted shares of
capital stock of Pledgor as a result thereof.

    V.   Options and Rights.  In the event that, during the term of this pledge,
         ------------------                                                     
subscription Options or other rights or options shall be issued in connection
with the pledged Shares, such rights, Options and options shall be the property
of Pledgor and, if exercised by Pledgor, all new stock or other securities so
acquired by Pledgor as it relates to the pledged Shares then held by
Pledgeholder shall be immediately delivered to Pledgeholder, to be held under
the terms of this Security Agreement in the same manner as the Shares pledged.

    VI.  Default.  Pledgor shall be deemed to be in default of the Note and of
         -------                                                              
this Security Agreement in the event:

         A.  Payment of principal or interest on the Note shall be delinquent
for a period of 10 days or more; or

         B.  Pledgor fails to perform any of the covenants set forth in the
Option or contained in this Security Agreement for a period of 10 days after
written notice thereof from Pledgee.

    In the case of an event of Default, as set forth above, Pledgee shall have
the right to accelerate payment of the Note upon notice to Pledgor, and Pledgee
shall thereafter be entitled to pursue its remedies under the California
Commercial Code.

    VII. Release of Collateral.  Subject to any applicable contrary rules under
         ---------------------                                                 
Regulation G, there shall be released from this pledge a portion of the pledged
Shares held by Pledgeholder here  under upon payments of the principal of the
Note.  The number of the pledged Shares which shall be 

 
                                                                               4


released shall be that number of full Shares which bears the same proportion to
the initial number of Shares pledged hereunder as the payment of principal bears
to the initial full principal amount of the Note.

    VIII. Withdrawal or Substitution of Collateral.  Pledgor shall not sell,
          ----------------------------------------                          
withdraw, pledge, substitute or otherwise dispose of all or any part of the
Collateral without the prior written consent of Pledgee.

    IX.   Term.  The within pledge of Shares shall continue until the payment of
          ----                                                                  
all indebtedness secured hereby, at which time the remaining pledged stock shall
be promptly delivered to Pledgor, subject to the provisions for prior release of
a portion of the Collateral as provided in paragraph 7 above.

    X.    Insolvency.  Pledgor agrees that if a bankruptcy or insolvency
          ----------                                                    
proceeding is instituted by or against it, or if a receiver is appointed for the
property of Pledgor, or if Pledgor makes an assignment for the benefit of
creditors, the entire amount unpaid on the Note shall become immediately due and
payable, and Pledgee may proceed as provided in the case of default.

    XI.   Pledgeholder Liability.  In the absence of willful or gross
          ---------------------- 
negligence, Pledgeholder shall not be liable to any party for any of his acts,
or omissions to act, as Pledgeholder.

    XII.  Invalidity of Particular Provisions.  Pledgor and Pledgee agree that
          -----------------------------------                                 
the enforceability or invalidity of any provision or provisions of this Security
Agreement shall not render any other provision or provisions herein contained
unenforceable or invalid.

    XIII. Successors or Assigns.  Pledgor and Pledgee agree that all of the
          ---------------------
terms of this Security Agreement shall be binding on their respective successors
and assigns, and that the term "Pledgor" and the term "Pledgee" as used herein
shall be deemed to include, for all purposes, the respective designees,
successors, assigns, heirs, executors and administrators.

    XIV.  Governing Law.  This Security Agreement shall be interpreted and
          -------------                                                   
governed under the laws of the State of California.

 
                                                                               5


    IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.



    "PLEDGOR"                 By: /s/ Philip J. Koen
                                 ___________________________________

                              Philip J. Koen
                              ______________________________________
                              Print Name

                                        22000 Dorsey Way
                              Address:  ____________________________

                                        Saratoga, CA 95070
                                        ____________________________


    "PLEDGEE"                 PointCast Incorporated

                              By: /s/ David Dorman
                                 ___________________________________

                              Title:  ______________________________

                              /s/ Jacklyn Karceski
    "PLEDGEHOLDER"            ______________________________________
                              Stock Option Administrator of
                              PointCast Incorporated

 
                             POINTCAST INCORPORATED
                                1994 STOCK PLAN
                      AMENDMENT TO STOCK OPTION AGREEMENT


     The Stock Option Agreement dated 1 by and between PointCast Incorporated
and 2 (the "Agreement") is hereby amended as follows, effective as of the date
set forth by the signatures below:

     Unless otherwise defined herein, initially capitalized terms shall have the
same meanings as defined in the PointCast Incorporated 1994 Stock Plan (the
"Plan").

     1.   Vesting and Exercise Schedule.  The Vesting Schedule set forth in the
          -----------------------------                                        
Agreement's Notice of Grant is amended in its entirety and replaced with a new
Exercise and Vesting Schedule as follows:

     "Exercise and Vesting Schedule:
      ----------------------------- 

     This Option is exercisable immediately, in whole or in part, conditioned
upon Optionee entering into a Restricted Stock Purchase Agreement with respect
to any unvested Option Shares. The Shares subject to this Option shall vest and
be released from the Company's repurchase option, as set forth in the Restricted
Stock Purchase Agreement, according to the following schedule:

     25% of the Shares subject to the Option shall vest twelve months after the
     Vesting Commencement Date, and 1/48 of the Shares subject to the Option
     shall vest each month thereafter, subject to your remaining in Continuous
     Status as an Employee or Consultant as of such vesting dates."

     2.   Option Agreement.  To the extent not expressly amended hereby, the
          ----------------                                                  
Agreement remains in full force and effect.

     3.   Entire Agreement.  This Amendment, taken together with the Agreement
          ----------------                                                    
(to the extent not expressly amended hereby), represents the entire agreement of
the parties, supersedes any and all previous contracts, arrangements or
understandings between the parties with respect to the stock option grant
evidenced by the Agreement, and may be amended at any time only by mutual
written agreement of the parties hereto.

     IN WITNESS WHEREOF, this instrument is executed as of 12/30, 1997.


POINTCAST INCORPORATED              OPTIONEE


By: /s/ David Dorman                     By: /s/ Philip J. Koen
    ------------------------             --------------------------

APPROVED FOR SIGNATURE 
POINTCAST LEGAL DEPARTMENT
GARY A. PARANZINO /s/ GAP