When I moved I had to unplug my Wii. When I plugged it back in at my new place 3 months later, it told me exactly how it felt about me. I haven't used it since...kind of scared what it's going to say to me now.
Wii U game cases are similar in size to DVD cases. The newest platform for Wii has all of the bells and whistles - video interation, voice interaction, downloadable games, movement capture and traditional remote control gameplay features using both buttons and a touchscreen.