Piracy runs rampant in the video game world, and it is nearly impossible to stop everything out there. The R4 is one thing Nintendo hasn’t been able to stomp out yet, and it’s popularity keeps rising in Japan. This little card fits into the DS GBA slot, and allows you to insert a Micro SD card. Retailers advertise it, but they won’t talk about what they use it for. Nintendo has said that they are keeping a close eye on the product, and I am sure they will make a move sometime soon.