Exhibit 16.3 July 14, 2005 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, DC 20549 Ladies and Gentlemen: We have read the statements of Bioaccelerate Holdings, Inc. (formerly Mobile Design Concepts, Inc.) pertaining to our firm included under Item 4.01 of Form 8-K dated November 17, 2004 and agree with such statements as they pertain to our firm. We have no basis to agree or disagree with other statements of the registrant contained therein. Sincerely, /s/ Pritchett, Siler & Hardy, P.C. PRITCHETT, SILER & HARDY, P.C.