This looks like a lot of fun. Part of me really really wants to try it. Another part of me is afraid of the thought of stupid people flying around town on these. They're guaranteed to crash into things, fall onto things, and generally create a serious public hazard.
I suspect that the government isn't going to make the same mistakes they did with RC drones. They're going to quickly pass laws that make it illegal for the average citizen to use one of these. They might require a pilot's license (e.g., the FAA Recreational Pilot license). They may require transponder usage. They may ban them over populated areas.