As of Aug 22, 2014 it appears that some sections are yet to be written. The laser-cut documentation is more mature.
I will attempt to make this more complete before the Albuquerque Mini-Maker Faire, September 13, 2014.
The Android app I use to demonstrate these bots is at http://boim.com/Walkin8r/BL_4WD.apk I have a fork of the source in my accounts. Contact me for more info.
I do not yet have documentation for hte electronics packages.
I use a common LM298 chip module for motor drivers,
and I can provide Arduino firmware.
I do not think that the firmware is published yet, but I have it
in my personal revision control.