Hey! Loving the Mario Kart, it's been working near flawlessly! Just curious. Would it ever be possible to fake the other features the game has? From the camera, or to the more important multiplayer via linked machines. Probably not likely...How were those machines even linked, anyways?
Also, what would be the file path to the Mario Card data? It'd be nice to use more then one card (and while it'd be nice to use Nintendon't to swap between datas, WiiXplorer might work fine?), especially considering once you make a card for GP1, you are permanently locked to whatever character you chose. Kinda silly when you think about it, but not too much of an issue considering GP2 essentially has all of GP1's content and then some, meaning it's a little unnecessary to play GP1...
Otherwise, like I said, amazing tool! Can't wait to see it expand into those last holes of incompatibility and become THE program for playing Gamecube games!