I just found out about this thing and I've been looking into it a little, and it seems pretty cool.... Couple things I'm wondering about it though....Can you still play online WiFi with the games that you put on it? Just like you had the real cart? And it doesnt actually mess with any of your DS hardware does it? So as long as you dont have the R4 cart in, you can still put in other games and itll work just like normal, correct? (I'm assuming thats right, since its not a hardware mod like other consoles) What about Gameboy Advance games....is it possible to download ROMs of those and play them? And what about emulators, are they supported? Wheres the best place to buy it? Do you guys like it? Should I go for it?