That looks truly delightful. I can't wait to see what you guys got there!
I've been working hard on a game myself in C.0x, and I'd say I'm about 50% done.
It's a four-level space ship flying game that is in some ways an homage to the Darius series by Taito (anyone ever play those?).
Last night I spent a large chunk of time making the sprites of the enemies of the third level, and the "final boss," so to speak.
A nice big sunfish, for all you midwesterners out there : D
He took quite a while to make, considering I made him basically pixel-by-pixel in MS Paint.
I also did custom music for the entire game, which I can't post right now, but I will soon. It's a pretty bitchin' score.