This is a very clever idea. The amiga emu as a VM is a lot smarter than you think insofar as games/entertainment development.
Now that the KS replacement project is well on its way, you can rest easy regarding amiga IP insofar as booting/emulation.
You should seriously consider developing a business plan and taking this bigger than a few games in your spare time. I really think this is a brilliant idea that could be VERY lucrative on top of iOS and xbox live, which both now have active development insofar as an amiga emu. XBOX is particularly interesting! There are over 30 million XBOX subscirbers; just 1% of that market means a lot of money.