What will the data rates be for 4G?

At present the download speed for mobile Internet connections range from 9.6 kbit/s for 2G cellular, up to 200 kbit/s (nominally 384 kbps) for the new Vodafone 3G service (mentioned above). However, in actual use the data rates are usually slower, especially in crowded areas, or when the network is "congested". 4G mobile data transmission rates are planned to be up to 20 megabits per second That’ s about 10-20 times faster than standard ASDL services. In terms of connection seeds, 4G will be about 200 times faster than present 2G mobile data rates, and about 10 times faster than 3G broadband mobile. 3G data rates are currently 2Mbit/sec, which is very fast compared to 2G's 9.6Kbit/sec.