Interesting what google picks up, it seems that SenTech (http://www.sentech.co.za/) in South Africa also use IPWireless hardware as part of their "MyWireless" offering.

A guy has developed his own IPWireless dialer, looks kinda cool.

http://www.proasm.com/mywi.html

Doesn't seem to correctly connect up to my PCMCIA card but still... looks interesting.