This is along ways off though. I don't think people understand that to get 1tb into a 3.5inch hard disk is quite a task. 

For these circuits to have any real value, the density of bit storage would have to be quite a few orders of magnitude of what their sample shows.

It may pan out or it may become something impractical.

These properties have been under study for years since the early 80's with IBM developing MRAM which is very fast compared to DDR3 DRAM for reads and low power its just densitys which they need to crack now

I'll just reverse the polarity of the neutron flow...