We were having one our regular team demofest’s today and Jeremy Mazner (who just returned from parental leave at Microsoft) demonstrated a very cool WPF application that uses the Flickr API to show your photo collection.  It enables tagging, uploading and slideshows.  It rocks.  What is even cooler is that its written by Thirteen 23, not Microsoft.

This is an amazing replacement for Flickr Backup a Java application that I have used for quite some time to keep a local backup copy of my Flickr photos.  Duncan, beat me to the punch and posted more details on how to get the application over on 10 today.

This absolutely made my day.