Hello,
   Thanks for your comments. The "new" Planet Ruby is still a little
rough. What's different - the Planet Ruby is actually powered by Ruby
;-)  and all code and templates are public domain (free, open source,
that is, license free).  One idea is to move the Planet Ruby
eventually to plantet.ruby-lang.org

 There's a planet template package for feeds (rss,atom,opml) in the
works [1]  You're always welcome to help out and make it happen.
Cheers. Happy planet.

[1] github.com/planet-templates/planet-feeds