Minecraft on Xbox 360. While he'll remain attached to the project as a game designer, the port is being handled by a separate, unnamed console dev. Notch notes "the programmers have done several console games before," but adds that he can't reveal what studio it is just yet. He also revealed it "won't be a straight port, though it's unclear what that means just yet.
He also spoke to the Kinect functionality, saying the game is of course playable without the motion peripheral, but "with the power of Kinect you will feel closer to your game than evar [sic] and it also saves kittens." Kittens! While we aren't sure that he's being entirely genuine with that final statement, we're just gonna take the statement at face value. We really like kittens, after all.