Though I did not like Comic Jumper at all from what I played, I am a pretty big fan of Twisted Pixel, know some of their staff too, good people. I will probably be getting that if I get Kinect.
I heard a Gears of War "On-rails" shooter is coming to Kinect as well, CliffyB even hinted at it. I was not sure about it, but then I remembered how well 2Spicy worked out and got kind of excited for it. Hopefully if that does well, SEGA brings that over too. Samba de Amigo was the obvious one, but I think Loving Deads: The House of the Dead EX could work very good on it as well. Here's to hoping Rise of Nightmares is a pretty game for SEGA and gets them to try out some other things.
Also, major major kudos to Max Cady for mentioning DeathSmiles, which has been out for a bit in America now, but is just now coming to PAL regions. I was never a fan of shmups before, but this and stuff like Radiant Silvergun really just changed me. DeathSmiles especially has some of the best design in ANY 2D game I have played that is new in years, it really is just a wonderful game with some of the most wonderfully created tactical gameplay I have seen in anything outside of a 2D fighter in years, it is all optional too, so if you want to play without thinking, you can do that as well. I really recommend it fully.
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The music is a treasure as well!