A US-based aerospace company says it has created a flying platform that lets its rider float above land and water. The aircraft has been dubbed the ArcaBoard - the firm appears to be avoiding calling it a "hoverboard" to avoid confusion with the controversial wheel-based vehicles. Since it posted a video showing several test flights, some news sites have questioned if the footage had been faked. But the man behind the project told the BBC that, apart from a little colour-correction, the video had been undoctored.
