"You might be using WPA for your wireless protection. The DSLite can only connect to the less secure WEP encryption but the DSi is capable of connecting to WPA networks. Just something to think about.
I have no real interest in one. I'm happy with my DS Light, and many of the cool features like the downloadable games or apps wouldn't be an option for me, since my DS Light can't connect to my househould wireless network for some reason."