Zonetag Geocoding for Flickr
Yahoo has released a product called Zonetag which offers geocoding (or geotagging) for your Flickr photos. If your camera phone is not GPS enabled, it will use cellular tower locations to approximate your coordinates and tag your Flickr photos with that information.
The Zonetag software also allows you to upload photos to your Flickr account in two steps rather than copying to your computer first and then uploading.
Mobile phone compatibility is currently sparse, however this is an “alpha research prototype release”… in other words expect a few bugs and future improvements.
The Zonetag software finds out from your phone which cell tower you are connected to. It figures out where that cell tower is based on other users of the Zonetag system. If your phone does have a GPS it sends the cell tower ID and the GPS coordinates to the Zonetag system. The Zonetag system then knows that cell tower is near those GPS coordinates.
As more users use the Zonetag system more GPS locations surrounding towers can be identified and more accurate locations approximated.
A second way of identifying the location is to see how other people have manually tagged the location of their photos when they were taken near the same cellular tower. Manually tagging the photo can also be done if you know the exact GPS coordinates by using the geobloggers GPS tagging format. Example:
“geo:lat=45.1241″ and “geo:lon=-71.2397″