I am not really into console modding (I generally do coding for Windows only) but wouldn't this method work to be able to play GBA games from Slot-1 cards? Some people said that it took too much processing power for a DS to play GBA games. What if we let a PC do all the work? So we just throw a GBA rom into a converter of some kind (if somebody knows how the GBA rom filetype is built, that would help ) and then the converter makes a NDS rom from it? Which would basically be a real DS application, not just a loader and a rom, but a real NDS-format game. I am pretty sure there are computers that could handle this. If we get a creator of a Windows GBA emulator to work on this as well, interpreting the GBA rom would be easier, since the emulator programmers know how it works. What are your views on this method?