I didn't receive it yet, but I ordered it form Costco. Does the firmware matter if you're gonna install a Wiikey 2 + Wii Clip? I know for PSP's, firmware is the main factor if you want to mod it. Also, what's the difference between WADs and ISO's? If I acquire a Wii ISO, I would just burn that to a DVD, correct? And what's the deal with "scrubbing" them?