I found a quote somewhere from Kevin Werbach from Release 1.0 to the effect that weblogs, webservices and wireless internet is the next world wide web. The excitement is supposedly back. Then he loses it by stating that You heard it here first. Is he kidding? It's been going on for a while now.
It is interesting though. To me, something like Radio Userland is mainly interesting because it challenges some of the design paradigms we've gotten used to, by efficiently moving control to the edges, using the shared space of the internet itself mainly for storage and to enable discovery.
This new edge controlled network is in the very early stages of formation, and resembles the WWW of 1992-1994: All content is essentially static, since the edge network - the control - is not generally available 24/7 or visible at all.
What kind's of dynamic content are possible on the edge controlled sometimes-on network? Is this finally the emergence of a real live architecture of software agents? Why should it be? Well, the edge-network needs some technology to move control about, and specifically to move control into some visible available space. The moveable control would be some kind of software agents.