I confess, the still used as the cover frame for the video put me off of watching it. Is any part of the video not a barely clothed model wearing the skates?
Ugh, no kidding. I want to see what the skates look like up close. I want to hear what they sound like without music being played over the top. There's hardly anything useful in the video.
That said, I've been looking for a decently portable, medium distance form of personal transport for a long time (preferably wearable so I don't have to lug it). I can't take a bike onto a tram. These might actually fit the bill.