old old old news I read about this around 3-4 years ago interesting yes but nothing seems to of happened since and if it has the military would be all over this sort of tech so the chance of it entering any form of civilian application would still be a decade or two after the military have played with it.
Small detail aswell scientist haven't even mapped the human brain yet the chance of being able to construct one out of pure digital matter is nigh impossible and again no-one knows the lmits and extent of the human brain memory alone could be way more then a trillion terabytes for all we know