I just enabled completion tracking, rubrics, outcomes, and other new features on this Moodle 2.0 site. You should now be able to do any of these items on your individual courses.
I also enabled box.net, dropbox, and other repositories. I had to get the APIs for some of these features, so let's see if they work!
Thanks for experimenting on this site. Please post any feedback, insights, or issues on this forum for now.