I wish I could contribute more than, "that's cool!" but gosh darnit, it is cool. This should be put into a module and released on CPAN.

People have been putting lat/long info into dns records for awhile now, but it's never really caught on. I've been recently thinking about this since wireless usage has been growing.

Does anyone know how the pgp.mit.edu site does it's location verification? Does it actually do any?