The Dirty Secret of Today's 4G: It's Not 4Gmatt buchanan11/05/10 2:00pm5391EditPromoteDismissUndismissHideGo to permalinkT-Mobile claims the largest "4G" network in the country. Verizon's launching its "4G" LTE network later this year. And Sprint loves talking about "4G" WiMax. Thing is, none of these networks are actually 4G. Not by a long shot.