OK I want to buy a Iphone 4 unlocked, so I can use with any micro-SIM cards. But I live in the U.S.A, and all the iphone 4 was locked by At&t.
iphone 4 from Canada was unlocked, so I went to canada apple wedside to look up.
http://store.apple.com/ca/browse/home/shop_iphone/family/iphone#faqs...