You may have played with the dynamic layer that links from Google Earth to geotagged Flickr images. It was one of the first inventive uses of KML markup language after Google Earth launched.
Now you can do the reverse: You can link to Google Earth dynamically from within the Flickr website, letting Google Earth fly you to the spot where your geotagged photo was taken.
Rob Roy, the author of the servlet that makes this possible, explains all on his blog.
I think FlickrFly is a wonderful innovation — it seamlessly integrates Google Earth as a browsing tool, and should lead to many more Flickr users noticing the link, trying Google Earth, and then geotagging their own photos once they realize the benefits it brings.