flickrvision is fun

Okay, a bunch of technology bloggers have covered this, but flickrvision is the coolest thing I've seen for wasting time in quite a while. 

What is it?  It's a slideshow of recent Flickr photos, but the draw is that the slideshow uses the world map on the background and shows you where each photo was taken.  It has a flat map view (default), and a 3D view that spins a globe to show you where the photo was taken.  Neato.

How?  It can only do this for photos that have been geotagged (attaching the latitude & longitude to the metadata of the photos).  Sound hard?  Only partially, Flickr gives you guidance on how to do it.