As you can see in the video, it can supports the weight of one human. The hoverboard doesn't float over any surface, however. It requires a metal ground to work its magnetic magic, but who cares.
http://sploid.gizmodo.com/company-creates-real-back-to-the-future-hoverboard-and-1648887686?utm_campaign=socialflow_gizmodo_facebook&utm_source=gizmodo_facebook&utm_medium=socialflow