I like the photo stamp idea. Some other people have guides up on how to
GPS tag your photos.
It would be great if the
meta-data for any image you took automatically contained the GPS location (with an option to disable) so then web based geophoto services could just read the GPS coordinates out of the image itself.
If GPS wasn't available, which happens when you are in doors, the nearest towers' GPS coordinates could be used.
Looks like a LOT of people are interested in this idea but the effort to do it at the moment is more than its worth for casual photo GPS taggers. Getting the phone to automatically do it would be excellent.
Dreams 2 Text: The GeoSpatial Web - RightClick a Photo GoThere!!!
GPSPhotoLinker: Overview
I actually think it is possible to get this working since both the camera and GPS can be accessed from Java on phones that support both. In essence, you would have a java program that functioned as a camera. When it takes an image, it stuffs the GPS location into the metadata ready for use.
If anyone is interested on doing up a phone application to do this I would be in for it. I don't really have much time so its not something I can do by myself.
I do have a Motorola E1000 which seems to have everything needed, GPS java access, camera accessible from java, etc.