Free App Moves Photos from One Online Photo Service to Another

From the website:

"Migratr is a desktop application which moves photos between popular photo sharing services. Migratr will also migrate your metadata, including the titles, tags, descriptions and album organization.  Whether you want to copy your photos from Flickr to Faces, Picasa to Phanfare, or Zenfolio to Zooomr, Migratr is the app for you.  Migratr will copy your photos FROM any supported photo service, TO any supported photo service."

http://www.callingshotgun.net/about/migratr/

Thanks to regular contributor Lex Davidson for the suggestion.