[youtube]http://www.youtube.com/watch?v=Su4ZIqxaObo[/youtube]
Shadow Reaching is a new kind of user interface for large touch screen displays developed by Garth Shoemaker, Anthony Tang, and Kellogg S. Booth from the University of British Columbia. It creates a rather unusual way of interacting with very large displays.
According to information from the video, Shadow Reaching “supports natural interaction over the entire large display surface and provides strong user embodiment”.
Via TSHWI