If it's true, that's great, can't wait for similar tech to be affordable on PC. Just got my first SSD this Black Friday, and it's a cheaper one, but it made such a huge difference in overall PC usability.
I didn't really mind gaming load times on my 7200RPM HDD, though, it's more just stuff like booting up the PC, time until it's ready to properly use, Windows Updates slowing things to a crawl, Steam unpacking not being worth it... you know, general usability.
So I have to imagine that if it's indeed a leap even from high end drivers, it was more a consequence of them seeking a solution that runs a little cooler or something like that, and even ended up with better performance. Because I can't imagine it would be worth it to just skyrocket their production price just to have "better than SSD speeds". Cheap ass SSDs are already fantastic, and coupled with a decent CPU, will be such a MASSIVE leap for consoles. Doesn't seem like it'd be worth it to pursue performance in that area for performance's sake. A decent CPU with an HDD is already a considerable difference in loading times for many games compared to the PS4.
But whatever, what matters is: People who have only played on consoles so far are in for a treat when they boot up their machines for the first time.