Quoted from cocomonkeh:If I have an existing PinDMD on another game, what's the best way to get a new key?
You don't need a new key! the key is a "1-time" activation for the device.
You can change the dmd to whatever game you want at any time.
Replace the pin2dmd.fsq and pin2dmd.pal file with the new ones (depening if availbale for your new game you want to put it in)
and thats all.
EDIT: lucky1 was faster...