Perhaps this is what Spirit was predicting.
Notes on 3-30-13
“A technology is coming that will redefine gravity.. so many new items come out of it..”
BoldRide/Yahoo reported on 5-17-14: “The Aero-X Hovercraft Will Land in 2017. Don’t be surprised if your city streets start looking like an episode of The Jetsons in 2017. Aerofex, a tech company based in California, has confirmed it will launch the Aero-X personal hovercraft in three years time, barring no hiccups with testing.” Quoted by: https://autos.yahoo.com/news/aero-x-hovercraft-land-2017-143035406.html
The news site shows an interesting video of the hovercraft in action.