The difference here is not so much that it hovers and stabilises position, but that it has two modes of flying: when it hovers, it works like a helicopter (the propeller provides support), but when it goes forward, it works like a plane (the wings provide support while the propeller only provides forward movement).
This made me think of an experimental aircraft design I saw once. It uses a huge ducted propeller to be able to hover while at the same time being able to fly forward, with the wings (and duct) generating lift as in a traditional airplane. The problem is that the cockpit stays fixed, so hovering would be very disorienting for the pilot.
