Google + Apple + Skype
Rui did the .Mac part of Google + Apple. I'll do the XMPP part: Apple is using XMPP in it's iChat client, but still defaults to .Mac accounts based on the AIM network.
If out of this get-together we get iChat using by default Jabber, powered by GTalk servers, and maybe even start using Jingle JEPs for all the cool iChat peer-to-peer multimedia capabilities, then the interoperability with iChat is even more closer.
Also remember that Google and eBay recently signed a deal over Skype, and they mentioned exchanging presence with them via open standards. Care to place your bets on which one?
