T-Mobile USA Focuses On Its Network As Rivals Take Share

T-Mobile USA 2009 revenue dropped by 1.6 percent due to lower roaming costs, but aggressive network upgrades are beginning to juice the carrier as subscribers opt for data-powered handsets.

Total revenues were $5.41 billion in Q4, down from $5.72 billion in the year-ago period, but up compared to the third quarter when it reported $5.38 billion. German parent Deutsche Telekom (NYSE: DT) said the currency-converted income it draws form the carrier grew 3.4 percent to