The following link is to an article on MSN about that discusses how the increased presence of GPS devices in automobiles can affect your pocketbook. http://articles.moneycentral.msn.com/Insurance/InsureYourCar/WillYourCarRatYouOut.aspx
I find the article interesting for a couple of reasons. First, I believe that the general public will only become concerned about spatial privacy when it begins to impact them financially. According to the article, that time has arrived. Second, the author references the Federal Trade Commission (FTC) as a source for consumers with privacy concerns associated with companies collecting personal spatial data. The FTC has taken a proactive stance with respect to consumer privacy and I believe that companies that collect and maintain spatial data should be aware of the FTC's role in this area.