Powerful enough to be your next desktop. And still $35.
reddit comments are probably more insightful than the article
https://www.reddit.com/r/technology/comments/488yk9/new_raspberry_pi_is_officially_released_the_64bit/
Excellent news, cpu supposed to be 60% faster. My pi2 does well with everything except 3d bd rips (they play but it's overclocked, and just barely), this ought to do it.
I'm using a W10 media server about the same size as 3 rpi's side-by-side for my main machine. They're using a mirror setup at the real estate office for their biz. Size of everyday-use machines is now driven more by the type, size, & number of the ports you need on the case.