I very much agree. It's cool and all, but for such short distances(1 to 3 miles), it would be much for beneficial and practical to walk or bike. And with 50%+ of americans overweight, most of us need the excercise.
IMO, if he wants to revolutionize travel, just invent the teleporter(since it would be soooo easy). Instant travel, no emissions, what could be better?