"The image file format most cameras use includes fields for longitude and latitude, in anticipation of the day when global positioning systems are built in. That day could be soon. Cell phones already gather some positioning information, and by the end of 2005 all new cell phones in the US will be locatable to within 500 feet or so. Establish a Bluetooth wireless connection between phone and camera and the camera will know where it is. Web sites already exist that use GPS data to let you upload photos pegged to spots on maps, and a Stanford research project compares photos with shots of known locations, automatically annotating snaps with information about where they were taken."

David Weinberger in Wired über digitale Fotografie und GPS.