Nivi articulates what many are discovering: RSS is a pretty damn good way to build an enclosure to distribute all sorts of content and applications.
In this new platform-driven, disaggregated world we've building, RSS can be the workshorse driver for a distributed network of information and resources.
How cool is that?
Feednation, Feedburner, Pheedo and lots of others are putting the pieces together for feed processing, but there's tons of other work happening as well...
More tk on next-gen RSS efforts and distributed platforms.

P.S. Have you seen Raw Sugar, a social-network and tagging search tool?