How about they are using wifi spot location info for non-GPS location services with Android phones? Because that's what they seem to be doing: + GPS if enabled

How about they are using wifi spot location info for non-GPS location services with Android phones? Because that's what they seem to be doing: + GPS if enabled and have fix + Fall back to phone network (cell tower) and wifi spot triangulation otherwise That's one reason why Android prompts you that they collect anonymous location information - they don't have to have a bunch of trucks going around, just a bunch of people with wifi + GPS enabled and there you go: cheaper positioning for everyone else....