In "Back To the Future Part II" Marty McFly travels forward in time to 2015. There's a chase scene eerily reminiscent of a similar chase that took place in the first installment. This time Marty's getaway vehicle is a hoverboard. I reported last summer that Marty's hoverboard was to be auctioned by a London auction house, along with other movie props. It obviously wasn't functional. It's 2015. Has the hoverboard become a reality?