Flickr have unveiled their long-awaited photo printing service, but unfortunately it’s only available in the US. They’re extremely apologetic about this last fact, however, and are promising to roll it out into other countries soon. In the meantime users can configure who’s allowed to print their photos – I’ve given any flickr user permission to print mine, should they want to. I think this is a great step forward as printing is the final step to making flickr a killer app for photos. I’m looking forward to their UK service!