Sprint current 3G network based on CDMA 1xRTT EV-DO Rev 0 technology comprises more than one hundred cities in the United States. Verizon uses a similar technology. EV-DO Rev 0 allows download speeds up to about 1 megabit in real conditions, but very slowly additions. From there, both Sprint and Verizon run in EV-DO Rev A, slightly improved, the download speed and improve the download speed.

Cingular and T-Mobile is far behind in the race for 3G. Cingular’s HSDPA, which is about the same speed as the EV-DO Rev 0, but operating in 18 cities. T-Mobile does not have any form of 3G in the United States have not yet.

Mobile WiMAX, also known as 802.11e, the Real-World-speed upload 2-4 megabits per second, said Sprint CEO Gary forsee.

“Much of this 4G use are user-generated content,” said forsee. “Make sure the buildings and access MySpace and YouTube literally on the fly.”

Sprint is a relatively smooth transition to 4G dual-mode, thanks to devices and applications on a common platform for 3G and 4G systems, said forsee.

“As 4G services, there are some devices where we want to embed additional capacity. It is a transitional demand,” he said.