[felipeerias]

"Slightly easier protection against spousal snooping doesn't qualify"

It is about far more than that: it is about a new payment system, both more secure and more convenient. If that doesn't seem ambitious enough for you, I don't know what would.

You wouldn't trust face recognition to allow payments on stores or the Internet. Touch ID is designed so you can trust it, down to the separate secure storage for your fingerprint data.

It starts with being able to use your fingerprint to authorise payments at the App and iTunes Stores, and escalates from there.