So you take a moblogged photo, upload it to your MobileType blog, a bit of script finds the GPS Lat/Long/Alt co-ords in it and then links it to a mapping system, so you can see where the photo was taken. I think this is really great. I've already given up sorting all my photos, I just use a timeline system to find them. Now you could search them by location as well (get me all the photos I took downtown last month). On the other hand, when this starts to become standard on all GPS phones (and there's really no reason why it shouldn't), it better be a feature you get to opt-in to. Otherwise, there'll be an awful lot of people walking around taking photos with out realising each one has such detail tagged in the headers.