A closer look at Pachyderm

www.pachyderm.org  I requested a demo account and rcvd a quick response.  So I was up early this morning looking at the documentation and noodling around the authoring interface.  I am extremely impressed!  Not only is the editing environment well designed and easy to use, but the documentation is too.  Everything worked flawlessly and the published output is quite astonishing.  I say that because of the examples on the site.  Check out Technologies for Learning.
I know there are other open source initiatives out there, but the design effort put into Pachyderm is beyond anything I have seen to date.