Here’s the skinny on feeds out of this site:

• RSS feeds are valid RSS 0.92 feeds which contain either an article’s summary/excerpt (if I bothered to write one) or the entire text of the article. As noted yesterday, I’ve hacked Textpattern to indicate this clearly within the feed’s items so you don’t have to guess if you are reading a full article or just the excerpt.
• The Atom feed is valid Atom 0.3 (yeah, way behind) and now properly supports the summary feature of the Atom Syndication Format. Thanks to George for bringing this to my attention. This means that if you subscribe to the Atom feed, you can choose whether you want to read the full text or the excerpt/summary. I know that Bloglines has this support for Atom feeds (and, despite being owned by Jeeves, have managed not to suck).

So, there you have it. I hope to send my code patches into Textpattern’s dev team shortly. Perhaps it will be in the 1.0 release.