Maybe I'm the last one to have heard about this, but I just came across
http://wwmx.org/. The World Wide Media eXchange is a Microsoft
experimental project that, among other things is working on identifying
digital photographs by location. One way they're doing that is by
providing a free download on this site that will let you automatically
add coordinate information to your digital pix by either dragging and
dropping them onto a map or by uploading track data from your (currently
only Garmin) GPSr. It then identifies the location of the photo by
comparing the timestamps in the track log to the timestamps in the photo
data. There's lots of other stuff like that in this site as well.
I haven't tried any of it, and I'm certainly not endorsing any of it ,
but the site is worth a look. I thought there were a number of
interesting ideas there.
Steve
Team Tierra Buena