Up, up and away--flying taxis look to France's city of revolution to unleash change on the skies

Just a dot on the horizon at first, the bug-like and surprisingly quiet electrically-powered craft buzzes over Paris and its traffic snarls, treating its doubtless awestruck passenger to privileged vistas of the Eiffel Tower and the city's signature zinc-grey rooftops before landing him or her with a gentle downward hover. And thus, if all goes to plan, could a new page in aviation history be written.