Its more than just Android/iOS- their location data also works for computers with wifi as well (eg when I press the "share my location" button on Google Maps fr

Its more than just Android/iOS- their location data also works for computers with wifi as well (eg when I press the "share my location" button on Google Maps from my MBP, they pin my location down to within 50 feet) They certainly did not need to keep full packet contents though, just IP/Macs of nearby address to map to an approximate lat/long