[UK-CONTEST] Telnet connection using MDS

[Jim Martin - MM0BQI]

I would like to connect to the telnet cluster using a pcmcia data card G3 or
GPRS on a networked laptop in our forthcoming multi-op efforts.  As we
operate most of these events portable it is the only reliable way I can see of
accessing the cluster.
Before we commit to this expense we need to know the following.
Will logging programs such as N1MM connect okay to the cluster using such a device?
As we pay be the Mb, what would be the ballpark figure for size of data
transferred during a major 48 hour contest?
Are there any issues with this type of telnet connection and our wireless
network?
Any pointers to where I can research this topic or any other guidance would be
appreciated.
Thanks
Jim,  MM0BQI