I’ve been using HipChat for a while and one thing we were missing was an RSS injector so we can see what our competition is up to. I built this little script to grab RSS feeds and inject new posts into a room. You have to edit setup.php with your HipChat Auth Token, room name, and name of the robot you want have visit your room. Then run the PHP code via cron. Presumably you could recreate this to run on a more command-line friendly language, but whatevs.
Good luck and have fun.