BlueAlien.org

Update 2008.02.23: The game, which launched on 2008.02.15, can now be had for a mere $9.95 via Steam.

Audiosurf: Ride Your Music is a game from an independent developer (Invisible Handlebar, LLC) that is gaining some praise from IGF, which I stumbled across some by watching some videos at YouTube (see examples).  I am not much of a rhythm gamer but the videos are seducing me to give this one a chance.  I like the awesome concept of using your own songs to play through unique levels in the game [value added for my music collection!].  For more details checkout their site and forums and here is demo video set to Kraftwerk - Computer Love.

Grab the public demo from FileShack.

This may just convince me to use a CD Ripping Service.