The only thing George was sure of on a hot night in July was that he had absolutely no idea why a Dallas police cruiser was pulling him over. George, whom we agreed not to identify so he'd talk to us, is a driver for a local black-car service. On that night, he had activated a smartphone provided to him by a software company called Uber. With a few swipes of a touchscreen, a ride-seeking Dallasite with the Uber app on his own smartphone had electronically hailed George's Town Car. Once George accepted the Uber referral, the man had a picture of George, his license-plate number, his rating among other Uber users and his exact location, transmitted via smartphone. The rider did not have to worry about having enough cash to pay George, and George did not have to worry about getting stiffed. An Uber ride is cashless, and all users have credit cards on file that are... More >>>