An interesting set of postings on SOAP over UDP (Universal Datagram Protocol) and how WS-Addressing ties in plus Device Profiles for Web Services which talks about things like dynamically discovering a web service.


Think of it, wireless devices like printers you can just bring home from the store, unpack and the device itself will discover your system and connect up itself - all by itself; maybe even with the right drivers installed too :-) 


(oh yes, using Royalty Free Open Standard Web Services)