WHOA! That IS interesting! I haven't used XMPP/Jabber type chats, but I suppose this is built in to support Google's Video Chat with camera feature: Extensible Messaging and Presence Protocol - Wikipedia, the free encyclopedia (which reminds me, has anyone tried this feature yet? Is it active? Maybe someone could report their experience?). I also wonder what those non-responsive ports are open for...time to google some more.