I'm trying to get a few more friends to buy this to co-op play but it hasn't appeared locally here in stores yet. Are you guys running the game on your flashcards? I can't seem to connect to Nintendo Wifi with my R4. It tells me there was an error connecting. I keep gettting "unable to connect to Nintendo wi-fi ..... error 20109" My wi-fi does work, I've tried with Mario Kart and DSorganize web browser. Is this an issue with games and flashcards as I was not aware of it before. Advance Wars Days of Ruin seems to give me the same problem as well.