Really Cool!
One thing i've noticed with using as photos as placemarks is that the labels can quickly obscure the picture. (esp. when lots of pictures are close)
What I did with the export from
geograph.co.uk, is to have them invisible and then appear when you hover over the picture, which i think works really well.
Compare
15 latest images to the
one with labels.(only enable one at a time!)
Just save the resulting kml, to see how it done!
For other Examples see this
thread.
I really want to get the View-Based Refresh working (it not for backend reasons), then have will flickr, geosnapper and geograph (for UK & Ireland) all available

Barry
http://www.nearby.org.uk/google.html