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Famo.us, launching today at TechCrunch Disrupt in San Francisco and brought to you by the same guy who founded PowerSet (Steve Newcomb), lets developers write fully 3D apps without having to depend on complex programming tricks or compiled apps. It?s a lot like the interfaces you see in Iron Man or Minority Report, and it works on nearly any platform, including desktops, Android, and iOS.
some videos:
http://techcrunch.com/2012/09/10/famo-us-is-a-gaming-engine-for-3d-interfaces/
http://www.youtube.com/watch?v=fzBC20B5dsk
http://www.youtube.com/watch?v=NdAvOE3SyrU
The third link with the video playing and resizing is impressive.
That 2D app is pretty amazing looking!