The Misadventures of P.B. Winterbottom became available on Steam last week, so it's new to PC even though Xbox 360 have had it for about a month now. It's a puzzle game where you have to record your actions and than interact with yourself in the past… and no, Doc Brown doesn't show up in his flying car… and you can touch your past self without the universe exploding.
Some people on the interwebs have made comparisons of this game with Braid. This is the difference to me: Braid was artsy and indie, this game is fun, artsy, and indie. If you hated Braid...
The rhyming part of the review was fun :)