An electric multicopter would be wonderful for short distance over either water (e.g. PR main island to Vieques) or mountains (not having to have access roads, or being able to go straight-line for passengers, and a much longer route with switchbacks from a major road back into mountains. Eagerly awaiting aircraft like these; something <$500k and 100kg (ideally 200kg) of load, low speed, 30 mile range would be perfect.