Meh.. the only way this will cause traffic jams to go away is if everybody who bought one moved their residence close enough to work to be able to fly there on the machine's range, .. at which point, they'd realize it was close enough to just walk.
If the range problem is figured out, then the next roadblock will be all the wreckage from collisions of folks who cross infinite planes of variation, not just the 2 they have trouble navigating today. How many people bother to use their turn signals?
Imagine the fun of adding in tilt, elevation, direction, orientation indicators?
These folks who've proven time and again, they can't keep a car in between a set of lines..
If these things ever become common, I'm driving a tank.