"Inversion" is a game that the marketing people at Namco Bandai call dub a "gravity-based shooter". It's currently in development at Saber Interactive, the same team behind the upcoming HD remake of Halo. They might not have a huge reputation at this point in time but if either one of these games makes it big, we'll be hearing a lot more about them.
While the trailer doesn't reveal any gameplay whatsoever, we've good reason to think that their game has a very interesting concept. It's one thing to call a concept "interesting" and just go with the optimism, but the developers have revealed that "inversion" will have a heavy focus on gravity and the destructible environments that the entire game takes place in.