I'm new to AT&T and like to take advantage of the ability to pretty much bring any phone I want to their network. Right now I'm using a Nexus 5 but I'm looking pretty hard at the S5. Does anyone know if there's going to be an unlocked version that would work on AT&T? Something that may get updates outside of having to deal with carriers? After many years on Verizon I'd hate to miss out on some of the freedom that I get with AT&T. Thanks!