Interesting. Just yesterday, for the first time, I had a bank robot as me to create a voice ID by repeating a phrase a few times. I was in a hurry to talk to someone so I went ahead and did it. Governments already have a lot of bio IDs on us. Facial recognition from all the pictures we give them. Fingerprints from going through immigration.

The next big thing is going to be implants. I think it will be a generational shift. So, whereas people over, what, 35 or so might balk at a chip in their hand, it's a small leap to see a younger generation going for it. All they (the powers that be) would have to do is tie it in somehow to gaming or social networks.