IPhone is excellent in all other functions, but not as cell phone. Basically Steve attached a cell phone function to an iPad touch, as a secondary function not an integrated solution. It does not have some essential cell phone functions, as obviously as lacking of low battery alert, and even worse when you run out your battery, it’d take you several min before you could turn on your phone to resume your voice conversion, not to mention other cell phone functions/performance…
If you don’t spend too much time in cell phone conversation, iPhone is the great option. It’d be a huge surprise if iPhone 5 does not have LTE.