lucifer - I'd turn the tables on this deal. What is the value proposition of the non-technical co-founder? What is he bringing to the table? Money, ideas, customers, investors, partnerships, IP, co-founders? He generated the idea: yipee. Biz guys and idea generators are over-rated. There is no marketplace for ideas, and business plans are worth less than the price of the paper they're printed on. He cannot execute, and needs someone to do his bidding. There is no business at this point - just a compelling, unique idea and chicken scratches on napkins. All this talk about signing NDAs, pricing shares, and seeking VC $ is a waste of time. Focus on (1) building a team, (2) coding a basic v.1.0, and (3) finding users. If you can get past the prototype stage, then some more serious conversations can begin.