And just to kick the dead horse a little more ;), I sent a message to the whatwg list about pause/resume in WebSocket:
http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2008-August/015545.html Even though this is looking very far forward, there is the orbited ( http://www.orbited.org/) project which implements WebSockets and works using regular comet + twisted today. I think this would avoid any XMPP extension at all, and would purely be servers or proxies adding WebSocket support. Harlan
