This news comes from Chris Kenniburg of Dearborn Public Schools in Michigan USA. The district has been collaborating with the Etherpad Foundation to build a Moodle plugin which has already been submitted to Moodle.org to inclusion in the Plugin Database (as of this posting its release was pending).
You can try it out now though by visiting the Dearbornschools.org blog and heading over to Git.
Installing Etherpad’s Moodle mod requires that you have admin access and have installed Etherpad on your own server.
Check out the installation video here or below. Additional information is available at http://etherpad.org/2012/04/30/moodle-say-hello-to-etherpad/.