The CF from scratch
doc references the "Gentoo Universal Install CD", however there is no such CD available for x86, nor has there been for some time. It should instead refer to the Installer LiveCD
Also in that document, it references the install-public.sh script. However, is it possible that the user will need to edit that script before running? Especially if the user is using a liveCD to install the Zonbu OS to a laptop or other non-CF device. The guide says "sh install-public.sh -o /dev/sdd", but the script itself is hardcoded to look for /dev/sda. My sh isn't all that terrific, so maybe that's not an issue if it takes any /dev/ option. You may still want to include a note that users should change /dev/sdd to their desired installation device. This would be useful for owners of e.g. other StepNote laptops who just want to install the free/developer edition of Zonbu by booting a liveCD.
Finally, for the developer edition
doc, it would nice if you could include a brief endnote on expected compilation times for one or two popular packages, like Thunderbird, so that interested users know what to expect of the hardware when they decide they want to emerge their own packages . . . how painful will compiling be on the minibox or the notebook. (Yes, I'm aware the real power developers probably have a cross-distcc farm