Montana, Dakotas, Wyoming aren't served by AT&T
                                
                                
                                    (Newser) -
                                    For four years, residents of Montana, the Dakotas, and Wyoming were permanent wallflowers at the iPhone prom: AT&T doesn't serve those states, making them one giant dead zone. Today, Verizon starts selling the iPhone in the region, ending a long and painful wait for gadget lovers. “I remember...