OK, so maybe 90 percent
of DS owners aren't using R4 carts to play pirated games on their DS systems, but it's still a problem for Nintendo, especially if it wants to have enough money to have both Shigeru Miyamoto and
Howard Lincoln cloned.
But it seems as though the R4's days may be numbered, as it appears from the video below the jump that neither the carts nor Slot-1 cheat devices work in the brand new Nintendo DSi. Sorry, pirates. At least you still have the sea.