GPRS (general packet radio service) is a new nonvoice service that is
being added to existing IS-136 TDMA (time division multiple access)
networks in the United States and GSM (Global System for Mobile
Communications) networks in the United States and Europe. It provides
for the transmission of IP packets over existing cellular networks,
bringing the Internet to the mobile phone. Anything the Internet offers,
from Web browsing to chat and e-mail, will be available from GSM and
TDMA service providers via GPRS-enabled devices. Nikhil M. Deshpande and
Jay Gilbert explain how GPRS works and explore how well it works.