A
bletcherous protocol stack which basically reinvents
TCP/IP from the ground up, under the guise of "
wireless is different" (kind of ironic considering that
TCP was
invented because of the radio network on
alohanet). As a result, you have people reimplementing all the mistakes that were made in the history of
the internet, but in a tenth of the timespan.
This would be understandable if WAP (more precisely, WDP and WTP) actually did anything that UDP and TCP didn't do. As it is, it's a hodge-podge of ideas borrowed from the IETF and misimplemented by a closed committee.
Check out http://www.4k-associates.com/IEEE-L7-WAP-BIG.html for more information.