Yeah, i've seen this video like 5 times already, haha. It's pretty amazing, probably one of the best biking videos i've ever seen.
But it is far from a cruiser, haha, It's not even bmx. I don't blame you for thinking that though, since they aren't very common in america. I met a guy recently who had one, and he said they are pretty common in easter europe (which was where he was from). His didn't even have a seat post opening for a seat, pretty odd.