Close, it is the next generation of Gameboys. It has a touch pad similar to the Palm device, as well as another screen. They are about twice the size of a gameboy. I'm not sure if there is a way to play DS games on the game cube like there is for the gameboy, but there could be. We also have the cable to play gameboy games on the cube, but we do not have one for the DS.

Here is the link to the DS.