A friend just sent me this:

http://playpower.org/

It's a non-profit organisation with the goal of developing educational games for developing countries that run on 8bit NES hardware. The old Nintedo chips are now patent-free and clones are very common:

They're trying to recruit programmers with a social conscience, I'm not old-school enough to know 8bit assembly but then I wouldn't mind learning.. who needs GPUs anyway!