I would like to buy an iPhone but circumstances necessitate that I be able to use it in Southeast Asia on local sims. I don't want to do anything illegal but I would like to be able to use the Iphone without having to have A T & T roaming services. I would still have an A T & T account active in the USA. I'm out of contract with A T & T but I don't want to have a new one. I have rollover minutes coming out my ears.....LOL I want to be able to use iTunes and take advantage of Apple Care which I would also buy. Is there a way for me to unlock the iPhone for use on local foreign sims and not mess up anything with Apple, Apple Care, or Itunes or my warranty? Many thanks.