Sony's biometric Micro Vault
Another addition to
the Flash drive form-factor family is the Sony Micro Vault with fingerprint access, which attaches a 128 by 128
pixel fingerprint scanner to a 128MB USB 2.0 Flash drive. The biometric functions integrate with Internet Explorer
(filling in web page logins) and Windows Explorer only, which means that if you don't use Windows or a IE you've
just spent a hundred bucks for a drive you can't use (how hard is it to have multi-platform support these days?).
Operation is pretty much the same as most biometric devices, you authorize a fingerprint and set a backup password
in case that finger gets chopped off. Or the drive breaks, whichever comes first.