You can´t find it because this model was a project and it never enter to the market, it´s a shame because it is very good...
GPRS is an abbreviation for General Packet Radio Service. It is a fully fledged data
network, which runs parralel to existing GSM infrastructure.
The benefits are an always-on connection to WAP services and, in ideal conditions
at least, faster data transfer rates compared to that over the GSM network.
Bt Cellnet recently launched the first consumer GPRS service in the UK!