3. Who knows who could end up getting the data?

Right now, the location data from Latitude stops at Google's servers. But who's to say what agency might demand it at some point down the line?

Think back to Google's a few years ago. Officials wanted Google to turn over the text of all terms typed into its search site for a specific time period as part of a child pornography investigation. Google , but other search engines -- specifically, those run by AOL, MSN, and Yahoo -- .

Then there was the time AOL three months' worth of search histories. People were able to actually identify specific users and see their searches, even contact them based on the information.

We don't anticipate any of that happening with the Latitude location data right now. But no one anticipated those instances happening back then, either. I'd rather not take the chance when it comes to something as sensitive as my every step. You just don't know who might get their hands on the data in the future, whether by subpoena or by accident.