jEdit, my favourite programming tool, comes with a plugin for Weblog feeds. I’ve tried it out and it works nicely.
Had to download the jar and put it into ~/.jedit/jars, then invoked jEdit. To add new feeds, you have to go to Utilities -> Global Options -> Plugin Options -> Headlines; to actually use the plugin, go to Plugins -> Headlines -> Headlines and the viewer will pop up. Also works with the ZZ/OSS Weblog feed at http://www.zzoss.com/weblog/b2rss.php 🙂