Adding Overlay.xib which is the camera view that allows you to snap a picture, snap a delayed picture, and snap pictures at an interval. Adding related camera code for those three buttons/functionality. Also adding code for storing pictures within the application itself and all the logic that goes with that - such as incrementing the picture number dependent on files already in the application directory. Given img1.jpg, img2.jpg, and img3.jpg already being stored in the directory, the next picture stored will have the file name of img4.jpg.