Great. Why not update the firmware on the Action Replay DSi? No! We need to make money, so lets make a new cheat device that doesn't help make cheats for games on the console it's made to run on, but can still cheat on previous games!
Whats the point in this, u can use cheats on any flashcart nowadays. so this is useless shit.
You can cheat on flash carts, but you can't cheat on retail games you actually own without this, and if you can't backup your game and/or save for that game to play on the flashcart, then your out of luck. You wouldn't be able to get something in your save that you really want but can't get through any other way besides cheats.