The growing number of peripherals that use USB to charge, pair, and activate a wireless connection can create a traffic jam of dongles that forces you to choose between devices. Hewlett-Packard's $60 X7000 Wi-Fi Touch Mouse eliminates the need for a USB receiver by pairing with a Windows 7 computer though compatible wireless networking adapters. That sounds great in theory, but the mouse's everyday usability is marred by an oversensitive touch wheel that creates more problems than it solves.
Unlike its travel-friendly, ambidextrous linemate, the HP Wi-Fi Mobile Mouse, the X7000 has an ergonomic molded shape that doesn't work for left-handed users, but certainly offers a comfortable mousing experience for right-handers. The slanted angle and the thumb rest on the left side mimic the lines of Logitech's Performance Mouse MX, though HP's thumb rest doesn't double as an extra button like the MX's does. Finally, HP claims the mouse can last for nine months on two AA batteries, but I can't verify that until the Doc finishes repairing my DeLorean.
HP's instruction sheet indicates that the mouse only works with compatible Windows 7 wireless adapters, and you can find a list of these devices on Microsoft's Web site. I tried to install the X7000 on an IBM laptop running Windows XP and wasn't able to get through the driver installation required to proceed.