T-Mobile surpassed 30M mark in total subscribers by adding almost 1 million subscribers in the last quarter itself.

T-Mobile USA amassed 981,000 net additions in the first three months, three quarters of which were post-pay customers. Another 1.1 million subscribers were added when its purchase of SunCom was consolidated on February 22. T-Mobile USA currently has a total of 30.8 million subscribers. The calling plan MyFaves was doing especially well in the US, with 5.5 million customers at the end of the quarter. SMS and MMS usage was also up from the same quarter last year, with 33 billion messages sent in Q1 2008

Earnings: Deutsche Telekom First Quarter Stable; T-Mobile Hit By Currency Declines - washingtonpost.com