Currently, the biggest driver toward a future of driverless automobiles is Google, but is it a matter of time that more companies jump into this emerging technological market?
For more information, I recommend checking out the Wikipedia entry and the TED talk regarding Google’s driverless cars, both linked below.
http://en.wikipedia.org/wiki/Google_driverless_car
http://www.ted.com/talks/sebastian_thrun_google_s_driverless_car.html