So it looks like Intel is developing Bitcoin mining chips! Presumably an exploratory R&D effort, but still, wow.
"Intel factories, the documents suggested, were responsible for at least two generations of 21 bitcoin mining chips, a 0.57 w/GH 22nm FinFET chip (codenamed CyrusOne) and a 0.22 w/GH 22nm chip (codenamed Brownfield).
Though Intel has so far kept its relationship with 21 quiet, the bitcoin startup took the opposite approach in its company overview, which included a screenshot of an email allegedly from Intel CEOBrian Krzanich. Dated 5th September, the email finds Krzanich informing Pauker and investor Marc Andreessen of his opinion on a proposal to distribute bitcoin mining chips in consumer electronic devices."