My iPhone 3GS is a cool device. It has a built in GPS, as does the iPhone 4.
I did not realize that the very first time you use the camera, it asks you to “use your current location?”, then sets that as the default.
Mine was set this way, so therefore the phone puts Geotag information (GPS coordinates) in the EXIF data of EVERY photo taken with the phone! 🙁
I loaded the EXIF Viewer Add-on for Firefox:
https://addons.mozilla.org/en-US/firefox/addon/3905/
I opened up a photo I took and looked at the EXIF data and there it is, the latitude and longitude, accurate to within about 100 feet.
I entered the GPS coordinate values into Google Maps and BAM! There is the precise location where I live…yikes!
Instructions for disabling iphone location services:
http://icanstalku.com/how.php#disable
EXIF Viewer Add-on for Firefox
https://addons.mozilla.org/en-US/firefox/addon/3905/
