If you ever get tired of poking away at your smartphone's screen like a doorbell, you're not alone. The forward-looking folks over at Microsoft Research have been working away at a new touchscreen system designed pick up on more natural, whole-hand movements, effectively allowing users to break free from the finger-based paradigm that governs most tactile devices. Developed in coordination with engineers at Microsoft Surface, the company's Rock and Rails interface can detect three basic hand gestures: a balled fist, which holds items on the screen, an exten
