This application allows you to take a picture with a mask overlaid on top of the camera image.
Save - save the composite image.
Camera - take picture with mask overlaid on top of the cameras image.
Copy - copy the built-in masks to the camera roll in the photo album.
Mask - select a new mask from the camera rol in the photo album.
Album - look at the pictures in the photo album.
You can design your own masks using software such as GIMP or Photoshop. The mask image should be 320x460 with a transparent background (the bottom 100 pixels must be transparent) and saved in PNG format.