Imagine playing Frogger on your hand just by tapping your palm with rummy nobel a finger, or whipping through menus projected onto your arm. Researchers at Carnegie Mellon devised a new bit of tech magic that listed for the acoustic signals scattered through your arm when you tap it or your hand with a finger. The tech can then pinpoint exactly where you touched and translate that into useful input controls for a gadget.(new Image()).src = 'https://capi.connatix.com/tr/si?token=995c4c7d-194f-4077-b0a0-7ad466eb737c&cid=872d12ce-453b-4870-845f-955919887e1b'; cnx.cmd.push(function() { cnx({ playerId: "995c4c7d-194f-4077-b0a0-7ad466eb737c" }).render("79703296e5134c75a2db6e1b64762017"); }); While the clip shows video being transmitted onto someone’s arm and hand, including rummy royal a little game of Frogger, but I suppose you could use permanent additions to your body, like tattoos, to highlight where virtual, tap-sensitive, buttons are located. The tech, which is in its very early stages, currently uses a bulky cuff, but researchers say it could be the size of a watch eventually. The device could also be built to work with a pico-projector, or perhaps a mobile phone with a built in Yono all app projector, to cast the image of a screen onto your forearm or hand. “In the future,” researcher Chris Harrison told the BBC, “your hand could be your iPhone and your handset could be watch-sized on your wrist.” Sensors turn skin into gadget control pad [BBC, thanks Geoff]