More about propulsion than "flying"
Maybe it's all in the definitions, but... Seems to me that the motion the SmartInversion is going through is not actually putting it into "flight" (in the way wings or rotors do...) but more specifically creating the "propulsion" by which it moves through the air... the "flight" part would appear to be provided by the bouyancy of the gas fill, much like a dirigible or blimp, which then have additional motors to provide propulsion through the air. This just happens to merge the flying functional shape with propulsion functional shape... Cool and beautiful idea though, and I do like the allusion that it's "swimming' through the air!!
