One of the best things about Clojure is how it makes Java libraries suck much less. For example, line-seq turns a Java BufferedReader into a lazy sequence of String's, one for each line in the file.
You still have the suckiness of the multiple lines it takes to instantiate and clean up the BufferedReader, but macros like with-open makes that suck a little bit less, too.
Stir in some macro-fu of your own, and now you have the benefits of Java libraries minus the boilerplate suckiness. Basically, it turns Java into a "your language features are my libraries" language, no mean feat.
There are many Clojure libraries that attempt to reimplement existing Java libraries. For instance, Ring is a HTTP specification for Clojure that reimplements much of the functionality of Java servlets.
This is why I'm not interested in Clojure, regardless of how nice a lisp it may be. Java libraries are poorly-designed, the prospect of wrestling with them again brings back memories of frustration. And you can bet that no one will ever write better ones, because the community will discourage people from "duplicating functionality."