Thanks to scottlfa for explaining to me a cleaner way to extract the EABI rootfs. Will add this bit to the guide.
About the EABI installation method:
I also think it will make life much easier if I include all the necessary files (keymap, hardware clock rules, touchscreen and X), plus one single script to set up all these in the "1st boot" section.
So version 0.2 will be up soon.