Before anyone gets too excited over this development I would wait until you know what the die size is and the operating frequency at quoted power consumption.
I am surprised that they say that full custom poses a higher 'risk' - that's only true for very complex chips like cpu's, not for the very simple (and I mean very simple) functions found in SHA256.
Good luck to them though, anything that puts a spanner in the works of KNC or 21 has to be welcomed.
Well when you're considering laying down nearly 8 figure sums without seeing the chip work first, you better be damn sure its going to work.
Thats why you employ people that know what they are doing and use MPW runs. Not rocket science, is it?