If I was a concerned boss, I would likely use GSM cell info to track my drivers. While not good enough to do turn-to-turn navigation it certainly is good enough to tell where people are.
Btw, don't smartphones have this built in? I remember some old and cheap Android phones without GPS that came with this.
Btw, don't smartphones have this built in? I remember some old and cheap Android phones without GPS that came with this.