Inside Apple's new multitouch Magic Mouse
Apple's new Magic Mouse brings multitouch technologies first exposed on the iPhone and MacBook touchpad to the venerable mouse.
The new design presents a solid acrylic surface on a low-profile body, lacking any physical buttons or the scroll ball of Apple's previous Mighty Mouse.
More significantly, it shifts the use of the mouse from sensing movement of the device itself over a surface, to one where the user's fingers are sensed as they move across the surface of the device. The new mouse still uses laser optical tracking to find its relative coordinates, but the new multitouch surface turns it into a closer cousin of the trackpad.
