Sony reportedly is developing contact lens that allows its PlayStation to track eye movements. "The patent - spotted by Patent Bolt - suggests a pair of contact lenses could be used with Sony's next-gen console to detect eye movement, gestures and even blinking to control menus, videogames and other software applications to trained actions," according to Now Gamer. "Patent Bolt doesn't provide a link to the filing itself - which the site suggests was made as far back as May 2011 - and try as we might we were unable to find the listing through official patent and trademark websites. However, the site does suggest that magnetic contact lenses would be cheaper and more portable than something like a high-resolution Kinect camera, and could even be combined to enable 3D viewing." Read more.