said by tshirt: so they get to install antennas at the local shops in the neighborhood in return for ad contracts for very localized ads ("Hungry? Joe's pizza is right across the street!") which show up with every search or map.
Google earth will show prefered providers first, and offer inducments for merchants slow time of day (Try Joe's early special, 10% off for lunch orders before picked up by 11:30)and so on.
unexpected local rain storm? suddenly umbrellas are advertized for a store on the next corner.
Maybe Google actually == SkyNet??