I'm not really sure what a 3DS could do that the GamePad can't, so there isn't much point to connectivity anymore. I guess it could be used for 4-player games if the 3DS handled some of the processing, since 4 GamePads appears to be too taxing on the hardware, but that's about it. I just hope it isn't used just to unlock something in a game like some GameCube games did, that's a pretty lame use of it.