You are right. But passphrase can be reset; fingerprint is permanent... EDIT: as to sensor complexity, if it can be built into a home button, it'll be implemen

You are right. But passphrase can be reset; fingerprint is permanent... EDIT: as to sensor complexity, if it can be built into a home button, it'll be implemented on other fingerprint readers. Before long, people would be collecting fingerprints using this kind of advanced sensors..