http://reviews.cnet.com/pdas/hp-ipaq...-30419930.html
The ipaq 5550 has a fingerprint scanner on it. I had the earlier ipaq and remembered this cool feature. It doesn't use the screen but it uses the same type of fingerprint scanner as laptops use. I seriously doubt it's possible to have a screen read your fingerprint and if it does i'd rather have it scan business cards instead