In big corporates, your startup experience might not count for much, but I doubt that many places would consider it a downright negative. For SMB's I would expect it to count as a positive. At least when I have been hiring (in SMB's) I would certainly prefer a developer who had some non-tech perspective over someone who's strictly technically strong. A lot of programming jobs are really something like 20% programming and 80% figuring out what the customer wants.
