Your Fruit Ninja high score is irrelevant. In fact, no game of Fruit Ninja that you've played in your life so far matters anymore, not now that a motion tracking system, 5.1 surround sound, and a Wiimote have given the popular mobile game this insane virtual reality iteration. The only thing the CAVEā€”the Cave Automatic Virtual Environment, used by German students Thiemo, Alex, Matze and Moritz to run the game inā€”is missing? Real swords. Soon enough! [That Gadget Site via CrunchGear]