As a proponent of good public transportation I'm a bit afraid that automated taxis will get big enough in USA that they will start influence city wide decisions on how to develop city transport network even in Europe when time comes for them to expand their business.
Self driving buses will be such a boon for public transportation. Now you can have 24 hour buses, that operate on holidays as well, or even dynamic, short term routes based on demand (eg: after a concert or sports event), without being dependent on the availability of pre-allocated human drivers.