A friend of mine really liked playing the game "slice it" on his iPhone. If tested it and thought it was pretty good, but I am no iPhone user. So we started developping a clone for PCs.
My friend did all the geometric part of the game, and I did the interface using SDL. At some point I helped with the game logic too. It's pretty basic, but it works!
All that is missing now are levels, a lot of levels!