I am new to this whole thing but I want to understand how to software unlock my new 16 GB iphone. I have att here but I live part time in another country and want to be able to use my other country's sim win I am there. Is there an easy answer? I see companies that claim they can do it for money, but I don't want to pay and I don't know if I trust them. Is there a free option available that works? All input is appreciated! Thanks!