Imagine having a projector inside your cell phone or PDA, what can you do with it? Researchers from University of Toronto made a demo.
http://www.cs.tor onto.edu/~caox/
Ever wondered what's the next thing after multitouch? ShapeTouch is a research prototype from Microsoft Research. It lets you use the shape of your hands to play on an interactive surface just like how you would deal with real physical objects.
