If Back to the Future Part II is right, it's in 2015 that we can expect the appearance of the hoverboard.* And what better ground to hover over than San Francisco's: turf that (as your mother is thinking right now) threatens to open up beneath your feet at any moment?

In fact, it was this logic after the Loma Prieta quake — but not necessarily the tale of Marty McFly — that inspired the "Doc" behind Los Gatos-based Hendo Hover, Greg Henderson.As 7x7 glows, Henderson and family have harnessed two powerful forces: magnetic fields and crowd-funding.

The family company Hendo Hover sought $250,000 on Kickstarter to explore their technology and its applications, but they've already surpassed that goal with $435,908 and another 34 days to go. Just one easy payment of $10,000 could land you your own board (Note that this is Kickstarter, not Amazon, so your purchase will not arrive by drone in one day or less).

Below, the Kickstarter promo video:

The New York Times reported cautiously on Hendo and other hoverboard tinkerers last month,. But San Francisco will probably be the first to widely adopt the technology, as we've already begun to do with Boosted's futuristic motorized boards, and this one-wheeled motorized board, coming soon to a bike lane near you.

And let's not forget these other Zemeckis-inspired harbingers: Uber picked up passengers in a DeLorean last year, and there's of course the floating DeLorean in McCovey Cove.

* It should be noted that Filmmaker Robert Zemeckis famously claimed the film's hoverboards were real at the time of its 1989 release, just unavailable to the very credulous public.