Hey Stef -
LOVE the simplicity and output display of your plugin! I have been trying to change the number of items listed to 30 (from the default of 5) and it doesn't seem to be working. Below I've listed the short code I'm using:
[RSSjb feed="http://www.mysite/podcastpodcast.xml" filter="" num="30", list="ul", target="_blank", link="false"]
I've even tried changing it to fewer than 5... It doesn't seem to have any effect on the output. Any suggestions?