I'm not very familiar with Clojure. On the first glance it looks like Clojure has a good concurrency system. I know many people are talking about Actors(like in Erlang) these days, but from my experience with Scala Actors, they're not very suitable to solve some problems(like when you need a very good performance). Even though Scala makes your life easier to work with native Java concurrency, it's definitely a good reason to have a deeper look at Clojure. Thanks for the info!

Edit: Is there an 'easy' way to create OSGi bundles with Clojure, maybe some sort of Maven plugin?