I swear, Logitech must have some department that puts out cool technology daily, as they’ve just released two mice that can literally work on glass, something that has always seemed to evade us.  Both the Performance Mouse MX ($100) and the Anywhere Mouse MX ($80) use Darkfield Laser Tracking Technology to accomplish this feat, and they’re both available now. You can get the Logitech Performance Mouse MX and the Logitech Anywhere Mouse MX on Amazon.