WI-FI tech

hey, does anybody know about this technology? Nintendo DS has something about that.. I heard i have to buy an "antenna" or something?! To take downloads for the DS, talk to people at the pictochat.. how does it works? does this already exist?

Yup, it exists, and the "antenna" you reffered to is actually a USB plug in that allows you to access Nintendo's Wi-Fi network through your own high-speed internet.

Wi-Fi is already being used in Laptops and recently, with the release of the PSP and the DS, it is moving to the gaming industry as well.