The Swedish design team TAT (The Astonishing Tribe), has demonstrated a 3D-eyetracking UI that tracks the position of our eyes and changes the display accordingly. This really gives a feeling that objects are behind one another. Earlier the team developed the look and feel of the T-Mobile G1’s user interface which included such innovations as the window shade menu and 9-point visual key-lock.
http://www.engadget.com/2009/02/24/video-3d-eye-tracking-from-tat-the-guys-behind-the-t-mobile-g1/
