Maxine JVM

Does anybody know about Maxine JVM ( It is a JVM that is directly supported by Sun and should be written mostly in Java. It should provide better performance (in the future) thanks to avoiding native method calls and some other stuff. It is still just an experimental project and I'm not sure how good it is compared to JikesRVM. I just thought I should mention it in case some don't know about it and would like to take a closer look.