If you are on a Mac and using iPhoto, just select "Show Photo Info" under the Photos menu to see the EXIF data. As you said, it's just info about the camera and the settings used to take the photo. My camera doesn't have GPS or any other identifying information, so I never worried too much about it. I figure I'm not the only one that takes pictures using a Canon PowerShot, so that info would not be to useful to anyone trying to identify me.The exif data contains all the information on the camera, like make and model, as well as what lens was used and a whole bunch of camera settings as well.