EXHIBIT 16.1 March 19, 2009 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by Inner Systems, Inc. under Item 4.01 of its draft Form 8-K provided to us on March 19, 2009. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements made by Inner Systems, Inc. contained therein. Very truly yours, /s/ Marcum & Kliegman LLP Marcum & Kliegman LLP