I got a note from Dr Nic Williams asking about the RubyForge RSS feeds; he suggested using rdoc/textile/markdown/something as the news posting markup language. Then someone could put:

* Less bugs than ever!
* More features than before!

in their news posting and it would show up in RSS readers as list items and such.

Sounds like a good idea to me, but not being much of a PHP'er I'm not sure about the best option for the markup language library. I Googled up a PHP Textile library and a PHP Markdown library; has anyone used either of these? Any thoughts about which format to use?