http://www.betanews.com/article/Nintend ... 1234971873
The one thing I do not like was actually one thing I was excited for. I refuse to use WEP on my home network, so I've been left out with online DS gaming. The DSi will use WPA, but only for new games. Old games will still have to connect with WEP.
Personally I'm not sure its worth the upgrade right now unless some must have games come out that make use for the new features.To connect to Wi-Fi to use the new app store or to play online games, the DSi includes support for WPA security. The DS and DS Lite did not support any security above WEP, so older games reportedly still must connect via WEP to play online, despite the DSi's support for WPA.

