For these third-party ad networks, they accept a lat/lng, so we (and I suspect most apps) just pass in a value obtained from the device. That said, upon furthe

For these third-party ad networks, they accept a lat/lng, so we (and I suspect most apps) just pass in a value obtained from the device. That said, upon further reflection, a local advertiser could surely get enough targeting information with a much, much less precise value...we'll look into making this change in a future release.