The MagicMouse is not the standard mouse that we use everyday but the three-dimensional (3D) mouse that is worn like a ring. This unique design is the result of a group of undergraduate students as their design project. In addition, the 3D MagicMouse also wins one of 10 Invention Awards from Popular Science. With MagicMouse on your finger, you can control a cursor by simply pointing at the monitor.
Besides, you can also zoom in or zoom out on the screen display by moving the hand nearer or farther from the screen. The 3D device uses standard mouse protocol to communicate with the PC via the USB interface so that no any special or additional software is needed. Anyway, i think i would probably prefer the standard mouse design rather than MagicMouse.