Can you add extra meta data to images in the same way you can with music files?
Like, could you make an app that reads the GPS coordinates from the EXIF data, looks up the human readable name of the place of those coordinates, and adds that info to the meta data, so that any application that wants could read this position data and let you search for images taken in for example Oslo, Norway, or even in the Grünerløkka part of Oslo?