ok so my first concern is how do you get mp3s on the ds? and can you connect the Wi-fi to something besides what youre supposed to? and why does EVERYONE beat me when i'm on! huh?huh?huh?
To get MP3's on your DS you need a flash cart of some kind, I reccommend the M3. You can use wifi to connect to your computer and use it as a gamepad/vnc client. You can also use wifi for basic text-based web browsing, instant messaging and emails. This also requires a flash cart such as the M3. If everyone beats you, you must suck, lol
I ordered the Supercard and Superkey. I looked over all the options and decided ont the Supercard specifically for one of the reasons people like the M3 better. When the miniSD card is in the Supercard and then the Supercard is in the DS, the miniSD card can't be removed. The M3 has a slot at the end where the card can be taken in and out even when in the DS. I thought I'd probably be more prone to losing the card with that design. If you play GBA games, then the M3 is supposedly better. But the question was about MP3's. Both the M3 and Supercard can handle those just fine. So can the Max Media Player.