T-Mobile USA, the fourth-largest telco in the United States, continues expanding its iPhone-compatible HSPA+ network on the 1900MHz band (incorrectly advertised as "4G"). Today, the company announced that HSPA+ is now available to customers in the Washington D.C., Baltimore and Houston markets.
I'm sure you know T-Mobile USA is the sole major telco in the U.S. without the iPhone (next year, maybe?). But with its offering of Nano SIMs for iPhone 5 owners, free support to unlockers and unlimited 4G data plans, T-Mobile is a good choice for unlocked iPhone owners curious to take advantage of HSPA+ speeds...