[blattimwind]

To reiterate, you cannot, ever drive based on any map, regardless of how many smartphones collected that map's data. You might use a map for navigation, but even then you'll have to deal with closed roads or changed traffic flow that isn't yet on the map. You cannot use maps for driving.

[lolc]

Well that's my sentiment too. But the article is wishy washy on the use of the collected data. Having local knowledge can make you a better driver after all.