Apparently they are already doing something along that mode as I was on shopping on the Tommy Bahama site and another site and all I see now popping up are Tommy Bahama links, pictures of things I was looking at and clicking on!  Its so creepy!  I feel like I am being stalked on my own computer!  So if you dare shop on line, prepare to see those ads, those photographs follow you around for a while. 

Imagine what the cameras on the roads could do for the personal injury lawyers... 

Thanks for the update. Two shopping malls were forced to scuttle plans to track shopper's activity via their cell phones last November. It is only the most recent example of big business doing high-tech snooping in order to get useful marketing demographics. Now Google has decided to put an open face on the endeavor and ask customers to surrender their privacy voluntarily. And it will even pay those customers, but not a whole lot. Check this out: Google Screenwise pays to spy on you. Just click the link for the details.