Can anyone confirm an iPhone 5s bought 'Device Only' FROM THE APPLE STORE ,meaning full-priced, is locked to Sprint, or unlocked, like AT&T and Verizon bought full-price. Please give your feedback- anyone try buying a Sprint iPhone from the Apple store full-price and try using a different SIM ? Does it work ? (Verizon is unlocked whether full-price or contract) Haven't seen discussion on this. I know the iPhone 5 is locked to Sprint, but was it possible to buy full-priced Sprint iPhone 5 last year from the Apple store ?