Fujitsu PalmSecure PC Login Kit biometric mouse
Why you must have it: Biometric security is both easy to use and hard to defeat, so it's no surprise that finger scanners are popping up on notebooks and as PC peripherals. But once you've swiped them, anyone can use the computer. Fujitsu has taken the biometric protection concept one step further, making it continuous. It's done so with its PalmSecure mouse, which has an infrared scanner that reads the pattern of the veins in your palm as you hold the mouse (check out our video preview), all without adding more desktop clutter or replacing your biometric-less laptop.

Fujitsu has had its PalmSecure technology available for a while, but only in a version that required an authentication server. That tended to limit its uses to enterprises such as hospitals, where users might work on multiple PCs during the day. What's changed is the availability of the PC Login Kit, which has translated that authentication server into software that can run on your PC.

Your chances of having the first one on the block: Extremely high, as Fujitsu has not yet begun selling the PalmSecure PC Login Kit.

What you should know: The PalmSecure works only on Windows XP and Vista. If you want to have managed multiuser authentication across an enterprise's PCs, you'll need the authentication server edition.

What you need: A Windows XP or Vista PC with USB 2.0 port. Pricing is not yet available.