Seems pretty typical to have a bunch of federated contacts, as I do in my Jabber for Windows client, and wanting to arrange a meeting with several of them still requires me to ask their availability one by one.
Besides this 2009 post about ‘CalDav’, I cant find anything showing the promise of using XMPP (Jabber) to federate to another users domain mail server, so I can see calendar availability of potential meeting invitees and avoid having to determine availability manually.
Has there been and discussion on this topic ? If so, what was the outcome? I have not been told it would be part of the offer, just curious about it.