Java being required means this is a complete non-starter for me.
And running a VM with linux (or windows, java is as much a pain on either platform) is a lot of effort for running an editor.
As long as it needs java installed, I'm out...
Maybe once Light Table is somewhat stable, someone can hack it to use ClojureCLR for the benefit of the security-conscious Windows users :)
I really should get involved in open source projects.
Haven't had much experience with it myself, it has been a while since I've played with Clojure.