GUID is a unique indentifier? except that it's not a global address,
it something useful inside a local system.

we have these already in terms of these funny URI/URL thingy's

GUID's are badly over used by developers, they are not user friendly,
they provide no useful information and they are horrible to type...

how many websites have you seen where developers create article id's
using GUID's

please keep rss simple, this guid's idea sounds like the disaster
that happened when people mixed RDF into RSS...