I don't know if I should buy a Nintendo Wifi Adapter. Where does it go? How does it connect? I thought the DS already had wireless internet built in. I went to gamestop and read the description: You must have a broadband connection to use the USB connector. Dial-up connections will not work with this device. This USB connector is for those who don't have a wireless Internet connection, the adapter can plug in to a computer's USB port to create a Wi-Fi connection with the DS. Users can then use this to play compatible Nintendo DS games online. So if I buy this I plug it in to my pc? But then what? Does the DS just automatically detect it and I can play with anyone around the world?