Saitek has developed the Obsidian, a wireless mouse that somewhat resembles the Motorola PEBL. The Obsidian's contours contain five standard mouse buttons, plus a four-mode touchpad, which replaces a scrollwheel. The charger cradle is likewise unusual, laying flat and charging a second battery while the first is still in use. The mouse has 1,000dpi resolution and is only compatible with MacOS X or Windows XP computers. It's currently available for pre-order, but only for £43 ($82) from Interactive Ideas.