Live GPS Tracking System

Wow, I thought this is only possible in movies where you can track your love or those who are doing some investigation. Do we know that it is possible that we can keep track of our love ones via gps tracking? Just imagine that the live GPS is like a web cam when you chat but this is more high tech as it uses satellite to get the reception and be able to track you or someone that you want to track. So protect every thing that is important to you and the live GPS can alert you when something is going wrong.