[philjackson]

I feel for you, sorry. If I could be so bold as to offer advice to anyone doing something in the future I would say:

Have a lawyer draw up a contract. Make it clear that you own the copyright to every line of code that goes into the revision control system that you own, and if possible, manage. Make sure the contract ensures you see the code often, making it a vital part of signing off any milestone. Always, always have a contract, even if you're out on this adventure with a pal. Money can't buy you friends but it most certainly can lose you some.