As I said, working fingerprint scanners were around for years before they were used on the iPhone.
He agrees, he just wanted to add that Apple wasn't even the first to create a working fingerprint reader on a smartphone.
I remember those HP Compaq finger print readers, I never set it up to read though, only because the software end of it wasn't fast enough for me.
I must mention though, after seeing the iPhone 5s scanner, it's also rather slow. If I can't turn the phone on, swipe finger, and get right to the info I want it's just getting in the way.