Not according to Apple. Dinodino is talking through his hat I know what I'm talking about. . . having actually bought an iPhone 6 through an Apple Store with my girlfriend. Apple carried iPhones for every carrier. . . they were sold out of T-Mobile iPhone 6's at the Arden Fair Sacramento Apple Store by 3:30PM on Monday, all out of all carrier 16GB iPhone 6 except Sprint, of which they had a few in Silver and Space Gray, and completely sold out of all 6 Plusses. They were not selling ANY unlocked iPhone 6 at all, by company policy. Period.
Again, your info is bad. The contract-free phones are unlocked. In fact, in two weeks I will be in the ME with my friend and can call you from one of the phones if you like.
Even Apple’s own site confirms this—don’t take my word for it: