Anyone seen this thing in action, used it, or plan on getting one?

My friend e-mailed me from Alabama and told me he just got one. I had never heard of it until today but after watching the video I have to try it. I'm thinking of ways to convince my wife to let us buy one and we don't even have a boat. We'd use it in the summer when we're visiting her parents in NH.

Site Link

Watch the video when you get to the page. The still images don't really get the point across. Trust me.