I'm hoping that TMo is being quiet because they're trying to put the finishing touches on their version of AT&T's numbersync to launch it at the same time with this phone. I have no evidence to support this theory, other than a cryptic post from a support staff online, and the fact that they said they were working on it over a year ago. https://support.t-mobile.com/thread/135036?start=0&tstart=0