Well I was browsing my fav NDS scene site and I found this emulator that actually works! It's still very limited (the sound) and it seems you can only have one room at the time...less than 5MB but still are great news!! what do you think? It's called GBAEmulatorDS(i) V. I'm not sure if it's allowed to post links to other pages so I leave it up to you to find it, it's not hard