It certainly is cool. That's why we work on it.
diablod3: currently we are swamped with work. As of now people just post links on the mailing list and Tony writes spiders to find mp3s.
I recommend that people try recent iRATE cvs(or unstable snapshots). We've done a few nice fixes and improvements. I'm sure that our next release will be yet another big step towards world domination.
I learned js in the early days of html and it was nice to reuse that knowledge and apply it to a real application.