From PAX East: Check out the trailer for Fez for XBLA
Developed by Polytron and published by Trapdoor games, Fez is a platformer the likes of which you’ve never seen. You control this little 2D guy named Gomez on a twisty adventure in a 3D world… and that’s all I can find out right now. But I do know that it is set for release some time this year on XBLA.
Link
Thanks to Tom for the tip
Notes