3 ms·Our smartphones are already tracking our home and work addresses. And have much higher penetration.by smackfu 13y agoOur smartphones are already tracking our home and work addresses. And have much higher penetration.chalst 13y agoQuite. And mobile phones were tracking locations in a police-surveillance friendly manner before there were smartphones.neals 13y agoAbsolutely! And private detectives would follow people around before that.