signor_john - 11:46 pm on Dec 14, 2009 (gmt 0)

I have misgivings about G having yet another source of data about me/us. It is bad enough they know/store most everything about my web habits and behavior without letting them in on all my real world activities and location as well!

What about your bank or credit-card companies? I live in the U.S., and whenever I travel abroad, I have to tell my banks and credit-card companies where I'm traveling so I can use my ATM cards and Visa/Mastercards. And, of course, whenever I conduct a transaction, they've got a record of where I was, what merchant got my money, and how much I spent.

Also, some people want other people to know exactly where they are--right down to their CPS coordinates. They can be quite compulsive about it. I stopped following a company CEO on Twitter after he bought an iPhone app that automatically tweeted his exact latitude and longitude at frequent intervals throughout the day.