Here’s an interesting multi-touch idea that might be very useful and implemented across all multi-touch devices in the near future. The ZeroTouch as its name says, uses “zero” physical touch to the screen and can implement the same multi-touch gestures as on a regular multi-touch screens “invisibly”.
The frame is lined with 256 IR sensors, which are connected to a computer. When ZeroTouch is mounted over a traditional computer screen it turns the display into a multitouch surface. In a demonstration at CHI, Moeller played a computer game using