3G stands for the 3rd Generation. Most phones now use 2G, at which point, internet, emailing and other internet services are relatively slow, because they work through cell towers. 3G has its own senders and receivers. Profits; video conferencing with your phone, downloading on your phone, and fast internet. The max speed of 2G is about 96 kbps/ in some regions (like Holland) if you're lucky, and you're not in Holland, EDGE (also 2G) get you 128kbps. Holland doesn't have EDGE anymore. High speeds wireless connections are starting from UMTS and up. But for the GPRS/EDGE part, upspeed is 16kbps which is way to low for video conferencing. Now, 3G, which has multi standards btw, so 3G is split up in UMTS and HSDPA (at least here in Holland, might be different in other countries. Lets take HSDPA speeds, because Apple seems to have shown interest in the new Broadcom chipset which supports this. HSDPA stands for High-Speed Downlink Packet Access. Its max speed is about 7.2 MBps which is roughly 800Kbps down. But don't get your hopes yet on. The max upspeed that Vodafone supports here in Europe is "only" 3.6MBps. Also, HSDPA is actually 3G+, the current standard in countries like Japan is still UMTS which has speeds up to 384 kbps which is translated about 3MBps. Upspeeds is something I'm not to familiar with, but you can count on about 1/4 or 1/6 of the upspeed.
As far as I know
