I've mainly focused on Mac use, but the Magic Trackpad is also compatible with Windows XP, Vista, and 7 systems. You can get around well enough with the device on your PC, but it doesn't support anything beyond two-finger gestures like horizontal and vertical scrolling. Basically, most of the charm of the device is lost in the Windows universe, so I can't say I'd recommend it. One other note, if you're dual-booting you've got to use the most recent version of Boot Camp to utilize the full features of the pad, so be prepared to upgrade if you haven't yet (and that means having Snow Leopard on your system).