Question (on Quora) that is related to this article: "What are the regulatory/legal problems that ride-sharing startups face?": <a href="http://www.quora.com/Ride-Sharing/What-are-the-regulatory-legal-problems-that-ride-sharing-startups-face" rel="nofollow">http://www.quora.com/Ride-Sharing/What-are-the-regulatory-le...</a> -- I am especially interested in what is preventing P2P Taxi services from popping up. You know, all SoMoLo map real time virtual taxi meter reputation trust bitcoin payment platform wallet HipAirTaskRabbitBerg. Thks :)