Google 100% was wardriving and all of your other items.
However, you can increase gps accuracy using wifi. GPS is not that precise (part of which is government regulations) and WiFi does help immensely with accuracy.
However, you can increase gps accuracy using wifi. GPS is not that precise (part of which is government regulations) and WiFi does help immensely with accuracy.
The difference used to be larger, but with the multitude of satellite systems now available and the advancements in receivers the difference is way less than it used to be.