: Manipulate an image with your bare hands

Dai Nippon Printing will start selling a system that allows you to manipulate a projected image with your hands. So how does it work? Nothing really super-fancy, it's just a touch sensitive screen on a surface up to 75" (the size matters here). This type of screen will be aimed at information points like we can (sometimes) find them (or not) in hospitals, big buildings, shopping malls, my bedroom...