The Bio Hub biometric fingerprint reader for Pocket PCs

Only works in Pocket PCs with CompactFlash slots, which are increasingly less common (it's an SD world), but Veridt has a new biometric fingerprint scanner new expansion card called the Bio Hub if you feel like adding a little extra protection to your handheld. And if you're really worried about this sort of thing (if you've ever lost your PDA you'll know what we're talking about), there are a few Pocket PCs with the scanner built-in, like HP's iPAQ h5550.