I took a few minutes of time between playing with my niece and eating dinner, and modified the rss.sh plugin to create rss 2.0 feeds. I created it as a new plugin, naming it rss2.sh, because I figure it would be less disruptive and also better to have both. I named the newly created feed, rss.xml, because it compliments the name, atom.xml, of the atom feed so well.
Oh, and my new rss 2.0 feed is here.