Not sure if you've heard about the iOS location tracking "fiasco" at this point it's really a non issue and here's an article summarizing why.
Here's another link showing one person's experience extracting the data and mapping it out... in short this guy has never been inside the Pentagon, but according to his location log he's been there several times. (lots of nice maps in this one). http://blog.geoiq.com/2011/04/22/liberating-my-data-from-the-iphone/
File this one under the "you could have fooled me" category. Columbus apparently is a Top Sustainable City. http://www.columbusunderground.com/columbus-recognized-as-a-top-sustainable-city Seems more like we won a marketing challenge.
And here's one more post to designed to prove the classic "Mac vs PC" stereotype. I think this also says something about Hunch's audience. Hunch is an online survey / questionnaire site. http://blog.hunch.com/?p=45344 Cool "Infographics".