I wish Apple made the iPhone an open platform as much as the next person, but if they’re going to try to put lipstick on the pig of a closed platform, why don’t they just argue that they’re making the iPhone theft-proof? If the thief can’t swap out the SIM to enable another account to use the same unit, ta stolen iPhone becomes useless as a phone (or else the thieves/purchasers will give themselves away by using someone else’s phone number).