We've added a new API method that returns the list of interesting photos for
the most recent day or a user-specified date.
The method returns a standard photo list xml construct and will accept
'extra', 'per_page' 'and 'page' parameters like similar getList methods.
Enjoy!
http://www.flickr.com/services/api/flickr.interestingness.getList.html
--
Aaron Straup Cope
Hackr