Some different protocols do different things. But XMPP, particularly wrapped in the Wave implementation, can do many, many things. Wave might catch on as littl

Some different protocols do different things. But XMPP, particularly wrapped in the Wave implementation, can do many, many things. Wave might catch on as little more than an open-source alternative to, say, Sharepoint and Biztalk. (collaboration and workflow automation being the most obvious non-communication uses). But I don't see why people would stop short and not replace their SMTP/Jabber/IRC/RSS use with Wave once they and everyone they need to work with is using it.