A "Hello world" application with the button module and the Fez Cerberus Gadgeteer mainboard.
You have to connect the hardware module with the mainboard as it is shown in the
Program.gadgeteer diagram (This is part of the code.).
The viewable result of running the code is that the green led light on the button module turns on when the button is pressed (and turns of when the button is released).
I have added a video of the result to youtube.