I'm not sure if this is discussed yet, so I'll throw it out. I have a Acekard 2i for my DSi. I originally got it so I could run emulators on the go, and be able to play my favorite oldschool games on my lunch breaks at work. However, certain emulators, namely Genesis and SNES, had issues running games at full speed, and had some bugs. I'm sure you are all familiar with this. One notable issue was that due to dropped inputs in the emulator, Street Fighter II was rendered almost unplayable. Now I have a 3DS as well, and the card was updated to run on it. However, now games run significantly faster, and Street Fighter II is fully playable. I'm assuming that while the cart can't take advantage of the extra hardware add-ons of the 3DS (3d screen, SD Card, cameras), the card can take advantage of the increased processing power. With this in mind, shouldn't it be possible to write emulators to better take advantage of this? Namely a GBA emulator (I know there are two out there for DSi, but one requires a special card, and the other is very basic). I don't think that Nintendo will focus as much on blocking a DS flash cart on the 3ds, seeing as the Acekart 2i is tricking the system into thinking that it's a legit game, and it can't run 3DS games. This could be an easy way to run legit homebrew on the 3ds.