Fingerprint Logons

Someone here at the Faculty of Management just bought an IBM ThinkPad T42. It’s hard to find anything cool about laptops nowadays, but this one manages to implement something.
Fingerprint security.
It has software that allows you to scan in the print of one of your fingers and then assign the scan to a user account. Then when you boot up and come to the login screen, you just scan your finger, and if it matches, it lets you in. No username to type, no password to remember.
Even better, you can assign different fingers to different accounts. You could assign your pinkie as the admin account and the index finger as the general user account. In a experiment of antiestablishmentarianism, you could even assign your middle finger to your Microsoft hackor account.
How cool is that?