Now that Clojure is at 1.0 and a book is about to come out I definitely feel comfortable using Clojure in a production application. It's a thin layer on top of Java and I can easily fall back to Java if I run into problems with Clojure. The IRC channel and mailing list are also available (and very helpful) for asking question.
Not really news, but I'll take it. Clojure's been popping up everywhere lately and I'm currently knee-deep in functional programming in my PL class, so I'll definitely bookmark this for when I feel like learning over the summer. Thanks!
Is anyone here on HN using Clojure for commercial production code - websites or otherwise?