3G, the next generation mobile network, was launched in the UK in March 2003 by the network operator 3 (Hutchison Telecom). Other UK network operators are now online with their 3G services including Vodafone, o2 and Orange (with Orange Intense)
3G represents the third generation of mobile phone handsets (1G was the old analogue system, 2G was the digital handsets that we're used to today, with 2.5G representing handsets with data capabilities over GPRS).
The features you can get from 3G are as follows:
Download video: The big selling point of 3G is the ability to download video clips to your handset - this can be sports snippets, music, news headlines, weather forecasts, adult content, or movie trailers
Video calls: Make and receive video calls to/from other 3G users. See who you're talking to in real time
Pictures: 3G phones can take still digital pictures as well as coping with video. You can send photos to other 3G users, as well as to users with non-3G phones that use MMS. Data speeds are considerably faster than a standard 2.5G MMS phone
Location-based services: See a map of where you are, and where to find nearest shops, banks, etc (more)
Games: Download games up to 30 times faster than standard GSM phones, and play online games such as Bomberman, Splinter Cell and the old favourite Scrabble.