I take a dim view of this:-)

some folks at UW and M have built some tools to take public archives of people's snaps and build really really cool fly around views of the world, mixing metadata, virtual and real in a novel way -

only downside of this is that its possible it may deter people from publishing some stuff (flicr and other things may start to offer more closed community views) - especialyl when pictures contain private components - one could imagine a tool that allows synth-photo-shopping out those components auto-magically so people would have the private view for their friends and famiily, but still publish the public components (mostly this would be a foreground/.background edit since most snaps have one's subject in foreground (person) and the scene in the background (leaning tower of teleon or Voter Damn cathedral in new your or whathave you) -such automatic algorithms exist and are pretty good...