The box design for the Japanese DSi LL has shown up on Amazon.co.jp, and, as usual, it is classy and fairly minimalist, featuring little more than a picture of the hardware on a white background.
We're childish enough to be amused by the fact that the whole DSi LL doesn't fit on the box. You know, because it's so big. Look how much room is on the DSi box! Somehow, despite not fitting on the box, the DSi LL fits in the box -- we can only assume it's in there disassembled like an IKEA desk.