For those feeling underwhelmed, perhaps this isn’t the LTE story you were looking for. What it is: a prepaid mobile operator that’s trying to retain customers in a world gone gaga for mobile Internet. MetroPCS customers aren’t really looking for the next hot Android or iPhone. They’re looking for access to Facebook, Twitter and most importantly, online video, without having to sign a contract with a carrier. According to Tom Keys, COO of MetroPCS, about half of them use their phone as their primary internet connection, and about 90 percent of them use data on their handsets. “We built this for our customer base, not as a 4G iPhone replacement,” Keys said.