RT @ptaoussanis
*Super* cool open-source tracing debugger for Clojure by Juan Monetta just out: https://github.com/jpmonettas/flow-storm-debugger

Incl. a great demo video: https://www.youtube.com/watch?v=YnpQMrkj4v8

ClojureScript and remote debugging apparently planned. Looks very promising, worth checking out!