Sam Ruby’s wiki is documenting an effort to define a syndication format, designed to overcome some of the existing issues with RSS (which I won’t get into here!). There is quite a bit of popular support so far for this effort, which is nice to see. If you’re at all interested in RSS and syndication, I encourage you to go over and take a look! There’s also more on Sam’s blog.
If a new syndication format grows out of this, NewsGator will support it (in addition to RSS) in the first release thereafter.