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AT&T's 4G and T-Mobile's 3G found to be nation's

ATT Fastest 4G Service, T-Mobile Fastest in 3G, PCWorld Mobile Speed Tests Reveal
Sprint lags badly behind in both 3G and 4G speeds, 13-city testing shows.

San Francisco, April 17, 2012—Mobile internet service is a major monthly expense for most American consumers, and a very big business for U.S. wireless companies. The marketing machines of those companies are now in high gear, touting their services as the industry transitions from 3G service to the much faster 4G. Problem is, everybody’s service is “4G”, “most reliable”, “biggest”, “fastest” and “best,” if you believe all the names and claims flying about on TV, radio, print media and the Web.

That’s why PCWorld has once again hit the road to measure the real-world performance of the four major wireless services on America’s streets and in its coffee shops. During February and March of this year, PCWorld measured the speeds of the major U.S.

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