LightTable is written in clojurescript and it's a first-class language for the IDE (The core devs prefering it I guess).
Id like to use LightTable but I'm more of a CoffeeScript guy and CS isn't built in yet. Apparently to add support you pretty much need to know ClojureScript to create a plugin, or something around that. I'll gladly write the CoffeeScript syntaxer, highlighter and a theme, as I run my own flavors in Sublime. Just need the integration to be there.
Someone help! (Please go learn ClojureScript and PR to LightTable immediately OP)