You can't afford a proper QWERTY keyboard on your phone, much less a expansive multitouch slate. What to do? Well, if a UK startup named InputDynamics has its way, you'll just tap on any surface of your handset. The company's developed a piece of software called TouchDevice that uses a phone's embedded microphone to analyze the acoustics inside, reacting to your finger's impact on the surface with a touchscreen-like input on the device
. New Scientist
reports that's not all, as the algorithms can also be fine tuned for detect scratches and swipes for scrolling and zoom, and the company's in talks with "tier-one handset manufacturers" to license the program even as we speak. You'll forgive us if we're a bit skeptical, though -- if this truly requires only software and works on any surface, why not release an app to tap the backs of our Droids, BlackBerrys and iPhones?