There was a lot of discussion of that sort of thing at the original BOF for
this (in LA, if I remember correctly); there were even people there from
the European Space Agency that were talking about real-time position
information for sattelites in LEO! My take at the time was that many of
the architectures being discussed might or might not work for tracking end
users, but most would not be appropriate for both end users and
services/devices like IPP printers. Of course, one can hope that something
new will emerge...
-- Scott Lawrence Director of R & D <lawrence@agranat.com> Agranat Systems, Inc. Embedded Web Technology http://www.agranat.com/