Earlier discussion when this was rolled out in the US 4 years ago: https://news.ycombinator.com/item?id=11196671 https://news.ycombinator.com/item?id=11196671

Earlier discussion when this was rolled out in the US 4 years ago: https://news.ycombinator.com/item?id=11196671 https://news.ycombinator.com/item?id=11196671 It seems like they are combining location data sold to them by mobile carriers with limited GPS data that they might be cobbling together from several sources.