It sure is an amazing sight watching it skim across the water as we depart from Cairns. Approach does not mind us requesting not above 1000' intitially so we can look at it close up.
There is some news footage floating around of it going base over apex in a little indiscretion about 6 months ago. Crew were not seriously injured, thankfully.
Yes, the concept will work very well in island places like the Windies. I imagine it will also sell well amongst the Carribean drug cartels. Very difficult for any law enforcement agencies to keep up with it in boats, or access where it can land with fixed wing.
As for licencing, I belive that our CASA has wiped their hands of the idea and a special WIGE marine licence is required to "fly" it.