Though it still seems disingenuous to refer to pre-LTE network technologies as "4G," AT&T does have one logical defense: the network on which its iPhone 4S operates is theoretically capable of far higher speeds than the EV-DO Rev. A network that Verizon and Sprint use; until now, all three carriers showed "3G" up top. Of course, with LTE making its grand entrance on the new iPad and presumably on a new iPhone later this year, the 3G / 4G labeling will be just as confusing as ever.

Update: Yep, it really is just a deeply misleading labeling change — our network speeds here in New York remain just as sadly not-LTE as ever.