The R4(R4DS) Cartridge http://www.gaingame.com/bmz_cache/0/0f60b7b1daec995b6b5e83ed396b21e4.image.300x300.jpg is the current top-of-the-line in DS SLOT-1 flash carts. It is just an amazing little device like original DS cart size, it is a complete solution with no need to purchase any additional com...