This is stupid.
I am a big proponent of open-source software. I like the idea of being able to build my own versions of software, fixing bugs and adding features. I use it as a key component of my business. It is great. Moreover, most of the code that me or my employees write is or likely one day will be open source.
However...open hardware is a fundamentally different thing. No one has chip fabs in their basement. So someone will have to pay big money to make the masks and tape-out and test the hardware. Unless some major vendor picks up the design and mass produces it lots of 100s of thousands, the price per CPU is going to be stupidly more expensive than an off-the-shelf CPU/motherboard or embedded system. And, even then, you are probably buying an overpriced, underpowered CPU just because it is "free."
This is Stallmanism as its worst--"freedom" for freedom's sake without regard to functionality or practicality. Stuff like this casts a shadow of crazy.