Yes, but no -- I wasn't one of the Google Wave faithful so I don't know the ins and outs of it, but I what I wanted was the ability to extend SMTP all together

Yes, but no -- I wasn't one of the Google Wave faithful so I don't know the ins and outs of it, but I what I wanted was the ability to extend SMTP all together to include the possibility of negotiating XMPP -- almost like what's happened with HTTP 1.1/2/3 evolving to support new connection types and content types/etc.