BackFlip allows you to create unique wallpapers by applying one of six effects to image. BackFlip automatically gets wallpaper images not only from hard drive, any removable drive, CD-ROM or local network, but even from Internet.
It cycles wallpaper at any interval you choose (from once a second to once a year). Six effects automatically applicable to image (autocontrast; grayscale; negative; emboss; blur and sharpen). 26 image formats supported.