Wouldn't it be great to provide a example to use the piface to take photos with the camera module? One of the buttons take photos, another start recording video and th other end recording.
Apart from the stop recording the PiFace cad does using the snap-camera application.
The scripts are there and the Santa Challenge
and discussion here PiNoir & Santa Catcher Challenge Support
includes the Piface Control board.
Watch for the write-ups as Xmas fades into the past.