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T-Mobile starts 3G in San Francisco

San Francisco is the 20th city to get T-Mobile's 3G network.

T-Mobile turned on its growing 3G network in San Francisco on Tuesday. The Bay Area is the 20th market to get 3G service, and (naturally) it's one addition that excites us. By the end of the year, the carrier has said it hopes to expand to 27 cities.

Currently, T-Mobile operates its 3G network in Atlanta, Austin, Baltimore, Boston, Chicago, Dallas, Houston, Las Vegas, Los Angeles, Miami, Minneapolis, New York, Orlando, Fla., Philadelphia, Phoenix, Portland, San Antonio, San Diego, San Francisco and Seattle. While the list continues to grow, it's imperative that T-Mobile expands its network and lineup of 3G phones more aggressively as it launches its hugely-anticipated T-Mobile G1 on October 22.

Additional cities that could get 3G by the end of the year include Birmingham, Ala., Denver, Detroit, Kansas City, Memphis, Tenn., Sacramento, Calif., and Tampa, Fla.