(I had put this in the picade section, but it's gone uncommented over there)
I seem to have an issue with the Picade PCB, none of my buttons are detected by the picade and if I connect it to a PC via USB it doesn't seem to show up as anything.
A slightly fuller post is here : http://forums.pimoroni.com/t/built-picade-but-is-my-pcb-faulty/1189