I just got off the phone with a T-mobile rep. They are experiencing a nation-wide outage. They have no time frame for when they will have their network back up.
Neither, my wife or I can receive phone calls and we can't make any phone calls to anyone on the T-mobile network. All other networks and landlines, we can call fine.
BBM seems to work, and we both seem to be receiving emails. No MMS, or Text messages though.
Out in Chicago. Been on GSM for the last hour...I was in the car and I thought it was a bug with my OS but I guess everyone else is experiencing the same problem.