I just noticed this new 3ds flashcard http://www.r4is.com/sky3ds-flashcart-playing-3ds-games-on-latest-3ds-xl3ds2ds-firmware-p-16.html sky3ds, and I can't seem to figure out what the difference between the sky 3ds flash kit and gateway 3ds, which one should I buy? my system version is the latest 9.0.0-20u. Any advice or opinions would be greatly appreciated.