I have created the beginnings of a site dedicated to the empeg, and at least for the moment it is targeted at developers. It includes a journal of my experience with my empeg to date, a downloadable toolchain (and other software as I get to it -- soon), some other documentation, and a global empeg registry where you can enter your registration and serial numbers so others can see the highest registration number shipped to date.
I plan to add as much documentation as possible, but I don't plan to write it all myself -- I want you to help! If you write something up and send it to me, I will post it on the site.
Please check it out:
http://www.empeg.mars.org/Cheers!