This isn't new. I have had Clojure installed via the Ubuntu repository for some time now. Maybe since Karmic was released.
http://thoughtadventures.blogspot.com/2010/01/setting-up-clo...
http://measuringmeasures.blogspot.com/2010/01/clojure-quick-...
http://groups.google.com/group/clojure/browse_thread/thread/...