+5 (from previous feature request forum)

I would love to have this!

OpenID would make this service so much more accessible to people, especially users of Flickr who's OpenID is the Flickr profile URL.  Also don't fret about the difficulties of implementing OpenID.  You can add OpenID, Twitter, Facebook, MySpace... to the site easily by using Janrain Engage http://www.janrain.com/products/engage