They work on their collection of processes to produce these things, as to basically have non-proprietary way to produce chips from scratch. The other thing I know is that the guy at least has been involved in other layers of production, namely generation and validation of circuitry.
The website I posted links a few pdfs for more info.
I think the challenge will ultimately be the scale and price at which open processors would be available at for the target market. It isn't just a processor, but will potentially need a motherboard, chipset, and various hardware configurations depending on the customer.
There would need to be significant player buying these processors to make them viable for some smaller entities to be able to piggy back and purchase as well.
