Remember that scene in 'The Dark Knight' where (spoiler alert!) Batman uses the city's cell-phones to look through walls and find the bad guys? Totally awesome, right!? A group of scientists at KDDI apparently thought so too, creating a prototype they say could do something similar. Using geomagnetic sensors, accelerometers, and GPS, the device is able to determine its position and render its surroundings on the screen in OpenGL, including areas that are currently out of sight. We're guessing you must have already scanned those areas with the phone and that it can't actually see through walls, but we'd be happy to be proven wrong -- whenever they actually have something to show us. Like the group's funky concept phones we brought to you earlier, this one doesn't actually work. Yet.