With things like: RSSJobs, it’s good to see two things finally happening: RSS being created on-the-fly from searches; RSS being used for things other than news.
At the moment, however, aggregators are largely read-only, and do not read RSS modules’ metadata on-the-fly. The latter will happen as there is more and more metadata available, however, for the former, weblog APIs and RSS need to merge.
In theory, one the the things that Atom may provide is a way to automatically bind to and configure any service such as RSSJobs from within a combined ‘meta-aggregator’/weblog publishing client.