The tinfoil hat in me fully expects them to use this to kill the used phone market, jail breaking, and any number of other things that are consumer-unfriendly. "Oh, you lost your phone and don't qualify for a new free one yet? Sorry, you can't buy a used one from your bud. You have to buy a new one from VZW/ATT/etc."
This is a solution rife with problems for the consumer.