It could be even creepier if the biometric data could be sold to third parties, or if Google were to offer an identification service for third parties.
Edit: Downvotes? Prisons and corrections would love this thing for checking convicts identities. They already use fingerprints and mugshots which are cruder biometrics. This is just taking it to the next level.
So, Mr. Owl, I'm afraid that your insurance premiums are going up. Why? Because of that slip on the ice two days ago; our monitoring indicates that you have injured your back. Yes, I know you haven't even seen a doctor yet, but there's a 62% probability that you will be making a large claim shortly, so up with your premiums!