Where to find the geotags?

We all know iPhone 3G is capable of geotagging photos taken by the camera. The coordinates are stored in the EXIF data section of the JPG. So, what tool allows you to view the EXIF? JHead is one of such tool on Windows (command line, i.e, runs under DOS prompt) BTW, I googled to find out if GIMP allows you to view EXIF and couldn't find a definitive answer. If you know, please leave a comment here.