From the coverage maps, it looks like both AT&T and Verizon cover my city and places I travel. From there, Verizon has a better $/GB entry plan and offers hotspot capability. Then, there is the possibility that it might work on 3G networks by swapping sims (thus making it more flexible for data here in the States). Not to mention that AT&T might be more greedy than Verizon as a corporation (not sure if Verizon is throttling unlimited users, but Consumerist.com has AT&T in the running for worst company in America every year). What reason would anyone pick the AT&T version?