My favorite part of the article is that he doesn't seem to like the end product very much:
In the next version, I’m looking to improve the ergonomics. Staring straight down at the display isn’t comfortable for very long, so I’m looking for ways to make the entire device modular, fold, or break into pieces in order to reposition the screen. I think I will also try removing excess headers from the display controller and Pi to make the entire thing one or two layers thinner.
I LOL'd hard here. Basically, he wanted to reinvent the laptop to solve its shortcoming, and when he's done iterating he's going to end up with... a laptop.