Pikmin 2’s boxart may hint at a previously undisclosed feature…
A rather interesting logo can be seen on Pikmin 2’s Japanese boxart on the bottom right:
The logo resembles a GBA with an e-Reader attached to a GameCube. Nintendo has yet to comment on the game’s e-Reader support, but potential uses range from unlocking or uploading special items to new game maps. (Pikmin 2 featured a random game map generator at E3 2003 in cooperative mode.) Nintendo will most likely disclose details on Pikmin 2 and its e-Reader cards during E3 2004 in May.