TIME | 4G Reality Check: Here's Where a 4G LTE iPhone Would Actually Matter TIME But as this happens, it's worth noting that 4G data is still a work in progress. That may explain why Apple has held off on the technology for so long, even as Android and Windows Phone handsets have adopted it. Wireless carriers in the United States ... AT&T 4G LTE Coming To Denver-Boulder In 2012 AT&T 4G LTE Coming to Minneapolis-Saint Paul in 2012 ATandT Expands 4G LTE Coverage as iPhone 5 Looms |