FEZ

[GrooveMan.exe]

It's interesting, because (as far as my limited scouting of internet games journalism has turned up) most of the recent press about FEZ is that it won't be multiplat. Moreso than release dates or game play information. Though the 2 interesting things I found were the 'infinite lives' system (which is shown in that video. Falling too far will kill you, but you just respawn at the last safe ledge), and that the spritework's done by Paul Robertson (making Cave Story-style sprites a change of pace in this instance).