OK everyone, so what is Web 3.0 (or Enterprise 2.0 or whatever)? My bet is on xulrunner type highly responsive local apps with persistent connections to the server (which is possible with something like yaws, not really with apache). Kind of a client-server model where the server is Internet based (though, of course, no one will dare say the words client-server).

Do you really have to think about the Web in discreet chunks to talk about the future? Besides if you really want to define "web 2.0" (which always maybes me shudder) its more about the average person contributing content; it's not about the technology that enabled it.