Does anyone Freeboard?

I just stumbled across this site, and this looks fantastic. I love riding my longboard to get from Point A to Point B, and “freeboarding” looks like quite a bit of fun. I guess there are two central wheels on swivels under the trucks, and it allows you to pivot and spin the board around like you are on snow.

Anyone familiar with this? Any tips or hints? Tell me what you think.

Video.