What I want is a company with a business model like Red Hat working on ride sharing. Open source and free to use, or you can pay them to host it. Cities can choose to set the rates as high as they want and keep the income, or even subsidize it for rides in certain areas (or for vulnerable populations). Once self driving cars are reliable, a city could purchase its own fleet of vehicles and add them to the app. This way everyone benefits, more money stays in local economies, and drivers make more.