Hello,
I have opened an Etherpad instance at http://pdf.etherpad.fsfe.org/. I have created pads for all the pages we are going to change. I have created accounts for Hannes and Matthias. Everyone else who needs access, just drop me a line, and I will add you. I will also add this information to the wiki.
Also, is anyone working on Recommended, Overview, or About PDF already?
Cheers,