The Seattle Times: Business & Technology: Cingular poised to lead in speed: "Cingular Wireless reaffirmed yesterday it would begin to install the world's fastest wireless data networks by the end of the year, allowing the United States to leapfrog past advances found in most of Europe and Asia.
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Under 3G, data transmission speeds are in the same class as other broadband technologies.
In Cingular's case, the company is taking speed to the next step by rolling out what some are calling 3.5G.
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The differences between the 3G and 3.5G centers are twofold. The latter uses broadcast spectrum more efficiently, allowing more people to connect to a cell tower at one time without sacrificing speeds. UMTS can handle only 12 people on one tower at a time at peak speeds.
The other difference is in bandwidth. With the faster 3.5G, users would be able to download a 5-megabit song in 15 seconds; with UMTS it would take two minutes."
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