Dave's new experiment is definetly going somewhere.

I have posted the OPML list of feeds I read to the server, an now that it is polling my list to track changes. Cool.

The next thing I'd like is doing this the other way around: having my copy of Radio polling Dave's server in order to be able to subscribe to additional feeds (and possibly keeping several aggregators in sync) simply clicking on a checkbox there (checkboxes are already available).

The server could also smartly suggest additional feeds or, comparing my preferences with outher users', automatically subscribe me to new sources.

Until not much time ago you only needed one Apple computer to be cool. Now you need at least a cluster of 100 G5 to be considered. Once you have plugged all your Macs, Apple's new Xgrid is what you need to get them working together, with zero config.