As someone who has been searching on/off for a business cofounder I don't think you're giving enough credit to what a bizdev cofounder can do. I need someone to blog about the product/industry, to start cold calling customers and set up meetings, to write copy, to work on the demo video, to set up ad campaigns, to form the corporation, to help with the UX, etc.
Writing the code has taken up about 40% of my time. The other 60% could have been done by someone with no coding abilities at all. There is more than enough work to go around in a startup.
Oh, and if this sounds like you my email is in the profile.