Logitech was first to market with a mouse that was both wireless, and optical. Their wireless MouseMan Optical is to date one of my favourite mice thanks to its ergonomic design, cordless convenience, and precision control. But just because Logitech got the jump on Microsoft didn't mean they had won the game just yet, so it was no surprise that Microsoft would come tearing down the peripherals straightaway with the Porsche of cordless mice: the all-new Microsoft Wireless IntelliMouse Explorer.