On 7/3/06, brian suda <brian.suda at gmail.com> wrote: > According to the RFC 4.8.4.7 Unique Identifier, the only to requirements > are: >> 1) Value Type: TEXT > 2) Globally Unique > Any URL fits the TEXT requirement. As for globally unique, all URL only > resolve to a single location, so that makes it globally unique. The > only caveat is that if you have two events, those each need to use a > unique URL, not just http://events.example.org, but instead > http://events.example.org/event/1234 Right. So, this falls right into place with the discussion of having id attribute on each hcard/hcalendar event, so that they could be uniquely identified. :DG<