Fez is a video game developed by Polytron, a canadian indie studio. The project has been around for a long time : it has won a prize at the 2008 edition of the Independent Games Festival. It should come out in 2012 on Xbox 360 though, and I have the gut feeling it'll be great.
Fez is built around a technology called Trixel which allows 2D/3D perspective shifts, but unlike Paper Mario or Crush, other games with the same concept, it will feature a very calm gameplay, with puzzles and exploration in a zen atmosphere.
The character name is Gomez. He likes fez hats and shiny cubes.
EDIT : Fez is available ! Today is adventure day !
Music (gameplay demo) >>> [link]