Heres my question for you and anyone else that knows a good bit about chips. Will having the competitors' 28 nm chips help friedcat (or any person) develop his own 28 nm more quickly?
Simple answer no. Reversing engineering microprocessors can be done in theory. It has been done in the past, multiple companies built unlicensed x86 processors until Intel killed them in court. There is no reason to even try in this case; the knowledge of SHA-2 operations is public available you can design your own 28nm chip faster and cheaper than trying to reverse engineer someone else's design.