cylonlover writes "A trip on public transport or to the local coffee shop might give the impression that touchscreens are everywhere, but scientists at Autodesk Research of the University of Alberta and the University of Toronto are looking to take the ubiquity of touch interfaces to the next level. They are developing a 'Magic Finger' that allows any surface to detect touch input by shifting the touch technology from the surface to the wearer's finger. It's a proof-of-concept prototype made up of a little Velcro ring that straps to the wearer's fingertip with a trail of wires leading to a box of electronics. On the ring there are a pair of optical sensors. One is a low resolution, high-speed sensor for tracking movement, the other a high-resolution camera, which is able to detect 32 different surface textures with 98 percent accuracy."