T-Mobile US Incs latest ploy to win customers over may already be paying dividends. More than 80,000 of these Dear John missives have since been created, a spokeswoman said. T-Mobile stressed that not all of those writers may have taken the actual step of moving over to their service. In fact, customers are making signs, wanting to get their photo taken – they really want to have fun with it, spokeswoman Anne Marshall said.