Syndy is a feed application launcher with OPML, and OPML editor. You can apply applications (vocabulary components on xfy) to a group of RSS/Atom feeds and XHTML documents.
Latest release is Syndy 0.7 (zip archive), requires xfy Basic Edition 1.3 for Windows or for other platforms, release note is here.
You can try some feed applications:
screen shots:
This page was created using xfy Blog Editor
This page contains all entries posted to Xyndy in September 2006. They are listed from oldest to newest.
October 2006 is the next archive.
Many more can be found on the main index page or by looking through the archives.