alphadogg writes: That's a deceptively simple question. And the answer to it is an unsatisfying but accurate, "It depends." It depends on what one means by "4G," by "coverage" and even "most." The U.S. is one of the fastest-growing 4G markets in the world, thanks to aggressive LTE deployments by Verizon Wireless and AT&T Wireless, and availability of popular LTE smartphones like the recently released Apple iPhone 5 and the Samsung Galaxy S III, not to mention a growing number of tablets. Here's how answers to questions about who has the most 4G shake out.