Well if there is also GPS metadata in the photos you could find the bastard :) I wonder what other uses this has, though, because it means that if someone has

Well if there is also GPS metadata in the photos you could find the bastard :) I wonder what other uses this has, though, because it means that if someone has one photo taken with your camera they can find them all (as long as they're publicly hosted). Could be pretty creepy. Edit: doesn't work for me -- the 'Canon Canon PowerShot SX210 IS' does not write serial information in the exif.