trip1eX, I totally disagree. If I'm a consumer that doesn't know computers well, having a product right next to the DS on the shelf that says, "Nintendo Wireless Internet Game Adapter" makes things incredibly simple and obvious for me. Nintendo needs to make things incredibly simple and obvious for consumers, 'cuz they're not as motivated or geeky as us. If it's too hard, people won't bother playing the games online.
Heck, even I think that Nintendo's solution sounds simpler...I'm probably wrong because I've never tried to install a wireless router, but simply plugging in a USB stick and installing some software sounds very easy.