There are plenty of other Samsung v. Apple and Apple v. Samsung threads to hash out who did what. Take it outside this one? Tough not to be partners in some markets and competing in others in Tech. It's business.
Nicely stated, Mr. Choi.
Pretty sure you have to go to an Apple Store or apple.com for unlocked versions. I don't think any carrier wants you to see that option.Edit: There's only one handset for the U.S. and it has both sets of guts. Buying a unlocked from an Apple Store should let you take it to any of the 3 carriers for activation or activate it at the Apple Store.