Opportunity still here. Cross between skateboard and the 2 wheeled scooters Elliott used in the 30's. Article very positive on potential. Reported safer than skates and requiring less skill than skateboard. 2 wheels spread apart in front and one wheel in back work better on cobblestone streets.
Businessmen are significant buyers.
Any info would be appreciated by Elliott. Illustrating benefits of bikes for engineers. A veteran fighter pilot, rocket engineer and bicycle commuter, citing a long and frustrating. Cape Kennedy session run by official with ego problem. It took me two 30 mile bike rides to get over that meeting.