Sorry, I can't seem to link to the actual item. If you're one of the twelve people in the world who bought a Windows Phone 7, Hypership Out of Control is available for free.
If you don't know what it is, it's an awesome game originally released on Xbox 360. Kinda like a shmup but the focus is to survive through block corridors rather than shoot enemies. Your brakes are out, and so you just keep going faster and faster until your inevitable death.
Well, now it's available on your phone for free!
From their website:
Game Features You Will Love:
-5 game modes (forward and reverse too)!
-Online high scores!
-Super retro graphic emulation!
-Asteroids as big as your head!
-Maniacal laughter that mocks your death!
-Floating space eyeballs!