I just realized that the unlocked version of the HTC One is available for preorder in the HTC website. I'm thinking about selling my AT&T iPhone 5 and switching to the dark side . The only - minor - issue I'm aware of, I will need an adapter because the iPhone 5 uses a nano-SIM while the HTC One has a micro-SIM slot. Otherwise, it is my understanding that I should be able to switch phones without any inconvenience, and the unlocked phone would makes things easier if I later decide to change carrier. Thoughts? Am I missing something?