[allanchao]

Sorry, but usually idea is worth virtually nothing. Having been a technical co-founder before and now the business founder, I've been on both sides of the coin. Unless you have actually built a profitable business before, it's very hard to justify the value that you bring to the table.

The technical co-founder already has experience and pretty much knows the issues he's going to face, and how he's going to handle them. If you haven't built a business before, then you do not know the issues that you'll face or how you're going to handle them. So his value probably far outweighs yours, even though it's your idea.