Totally agree SF is where this should be tried first -- it's the US city where cabs are both needed and broken, and smartphone adoption is very high. And the great thing is: that's where UberCab is in fact starting.
However, I expect that if the service becomes popular, both the cab and MUNI lobbies will attempt legislative sabotage, and the SF supervisors are so enamored of paternalistic reasoning it's a real threat to the business.
However, I expect that if the service becomes popular, both the cab and MUNI lobbies will attempt legislative sabotage, and the SF supervisors are so enamored of paternalistic reasoning it's a real threat to the business.