This is so beautiful that, once I had accumulated enough "sheep", I've pulled the little vignettes into iMovie, wrote a score on GarageBand and now have a four-minute movie that I'm very excited about. Now, I wanted to contact the creators for credit info and to share it with everyone, but their website seems to have vanished, or maybe Safari is acting up. I was even at a forum they have for it a couple of weeks ago but, duh, forgot to bookmark it.
P.S.: this screen saver accumulates the images it receives on a folder in your user library/application support/electric sheep. If your drive is very full, keep track because them sheep procreate a lot ;-)