Driving cars on the floor is so passe, which is exactly why you need iHelicoter's wall-scaling iW500. We've seen similar gravity-defying propositions in the past, but this is the first to be controlled by your iOS device. Belying its 90s toy looks, the car attaches itself to vertical surfaces with a sealed vacuum that even has enough suck to drive upside-down across your ceiling. As you'll see in the video after the break, controls are handled using the built-in accelerometer on your phone or tablet as well as the touchscreen interface on the dedicated app. It'll join a crowded starting grid of iPhon
