the company is called freebord and they make skateboards that have extra wheels in the middel that make the skateboard behave like a snowboard. there are plenty of videos on youtube that show what it is.
anybody does this on this forum? it looks very very fun and might offer an alternative to snowboarding in the summer time. i guess the problem is finding long, smooth, downhill roads that would make it possible to mimic downhill boarding. i think even boarding down a multideck parking lot is possible.