I think they should reconsider that name. I know it doesn't matter for us responsible "know what we're buying before we buy it" gamers, but to the average gamer, calling something "Lite" makes it sound like you aren't getting as much.
Diet, Lite, Mini = Less
Special Edition, XL, Reloaded = More
I think they should call it the "Nintendo DS I havn't seen you since high school! You look GREAT!"