if i buy a full price Att phone with no contract, will i be able to unlock it without activating first via itunes ?
From what I've read on the forums (and from my experience last year with the 4S), if you buy a device-only iPhone 5 from the Apple Store, it will come factory unlocked. So, if you pay full price for the iPhone, you shouldn't need to unlock it as it'll already be unlocked.
I plan on buying one today to see if it works.