HourFace is a funny little iPhone app, which allows users to turn photo of a face into a moving/interactive 3D image. You can either use your photo library or snap a photo right from the app itself. Moreover, you can see how the face selected looks like younger and/or older, and of course email the result to a friend.
The application uploads the image selected to the server which then does all the magic. As expected, a good photo is required so that the face can be processed well. An ideal photo is not too bright or dark, faces directly ahead, has its mouth closed, shows a visible forehead and has no glasses.
The “make your face look older” function is especially interesting, as it demos the “Dorian Gray effect”… If you think all this is worth a buck, hop over to this page (iTunes) and take it from there. But before you do so, make sure to check out a short demo video bellow.