It turns out Sprint's locking down of the iPhone 4S SIM wasn't exactly a bombshell. Shortly after the iPhone 4S launched, Sprint told Jason Snell of Macworld that the locking policy would eventually go into effect.
According to Sprint, the company will "allow existing customers in good standing to unlock the SIM for international use if needed in the future" if customers explicitly ask for the unlock. That's decent of them, but it also makes me wonder why Sprint is bothering to lock the SIM in the first place. I doubt very many people are looking to buy the iPhone from Sprint and then migrate to AT&T or one
