I guess the acquisition of Waze and the investment in Uber will play out really nice for them with regards to the "crawling" of streets you describe. Uber and W

I guess the acquisition of Waze and the investment in Uber will play out really nice for them with regards to the "crawling" of streets you describe. Uber and Waze cover the most important urban areas, where the majority of all miles are driven. At one point they'll probably equip all Uber cars with the right technology to map out the most important territories. Feed in all the data from Waze and you should have a decent starting point for the main urban areas.