Compatible with iOS 5 and 6
Show a nice slideshow in your notification center, and have control over how the images show. Tap to show/hide the nice toolbar, and you get the option to go back a picture, pause/play the slideshow, or go forward a picture. You can also adjust the time it stays on a picture, or have it shuffle the pictures when playing in Settings > Photos
NotificationCenter addons can be enabled from the Settings app, in the Notifications panel
See larger Screenshots below..