Clojure.otp is a project mainly written in Clojure, it's free.
An OTP-similar system for clojure
gen_fsm for clojure.
See for yourself in the test (test/gen_fsm/test/core.clj), there are two fsm's implemented in this project:
Copyright (C) 2011
Distributed under the Eclipse Public License, the same as Clojure.
Ole Rixmann [email protected] 12.8.2011