I honestly do not see the value in this. What can you do with this service that you cannot already do with Facebook?
Here is a video where a guy shows how to make your Facebook photos click through to your blog or website. The guy babbles a lot about how great he is but at around 10 minutes he shows the steps to make the photo click through.http://vimeo.com/80316704
What does pic redirect do that is better than that?