Researchers in France have developed a technique for showing 3D on the screen of an iPad 2 without glasses and, more interestingly, without need of the accelerometer. The technique is based entirely on "head-tracking," or using the movements of the user's head as picked up by the front-facing camera, essentially turning the iPad's camera into a basic Kinect-type device -- which could have great implications for future 3D gaming on iOS devices with front-facing cameras, MacStories reports.
