Alright I am thinking of buying an iphone from the Apple website or retail store and then "unlocking" to use t-mobile instead of AT&T. Can it be still done or has Apple/AT&T done something to stop it? What version is in the stores and what version can be unlocked? What is the latest version if you upgrade? Is it safe? Does it void the warranty? How? How long does it take? Any thing different when using T-mobile? Any questions answered is appreciated and any other info you can give to help me anyway possible is appreciated. Thank-You in advance.