The term 3G internet is used to describe access to the internet using the 3G mobile network through a mobile device like a mobile phone or PDA. The 3G internet uses third generation technology (3G), which now allows people to access larger amounts of data at much higher speeds rivaling that of fixed line broadband.
The most obvious difference though is where you can use the 3G internet. With regular internet you are limited by a fixed line accessed using a modem or a router and even with wireless access that limitation is only extended a small distance. With 3G internet you are using the mobile phone network of the provider you choose and can therefore use it wherever you can use your mobile phone.
3G Internet access is becoming a popular way to connect your PC to the Internet, now that prices have reduced to affordable levels. There other advantages too - 3G Internet connections do not require a telephone land line for installation like ADSL connections. In china, you can find a 3g USB card rental services. 3G Rental
wherever in a construction site, exhibition, airport or your car, internet access in anywhere is no longer a dream！