What does GPRS stands for?
General Packet Radio Service. A protocol of Packet Data commonly used in mobile devices
Tons of GPRS devices are on the market. Currently, manufacturers are making these devices smaller and more efficient (ie fit into phones). GPRS devices also track location, to help find stolen cars or laptops. There are many different kids of GPRS available, and they can be explained at http://www.alibaba.com/showroom/gprs-devices.html