Coverage, while better than other packet-switched options, is smaller than that of mobile phones. CDPD modems are available for all of the Pocket PCs except for the Casio Cassiopeia EM-500. CDPD service is available direct through mobile phone companies, or through a number of resellers, including GoAmerica and OmniSky . Ricochet Ricochet is a new network that just appeared on the scene that allows for transmission speeds of up to 128 Kbps. Ricochet is only available in a few metro areas in the United States, which makes coverage rather sparse, especially if you need connectivity while travelling.
Cost is on a flat-rate basis, and the service is available through a number of resellers.
Currently, GPRS hardware is in short supply. Currently, there is no way to use a Pocket PC with these networks. There are a number of mobile connectivity options out there for you, whether it be wired or wireless. The one that is best for you depends on your usage and your needs. This column has given you a broad overview of all your options, but you need to research them further yourself.