We have a couple Oculus Rifts in the office here, and I gotta say, it's a pretty awesome product. Probably the best VR I've ever tried, and I remember when VR was "popular" back in the arcade days, with those behemoth VR pods. I'm kinda sad I missed out on the KS, but at the same time, who knows how far this thing is going to go and what kind of games/software is going to be released.
Anyway, a couple of my coworkers are submitting a game to the Oculus Rift Game Jam, and have been working on a Skiing game (created in Unity).
I think it's looking pretty good so far, for a very short development. Here's a short video: