No doubt inspired by yesterday's reveal of the MotionPlus prototype process, Siliconera patent trawler Spencer Yip has uncovered a similar process, only this time for the Wii's actual controllers.
Again, like with the MotionPlus, if you were hoping for a radical evolution from batshit crazy design to the current models, you'll be disappointed. They're all fairly similar. All, that is, except for my favourite of the bunch, which adds the GameCube's analogue stick to the surface of the Wii Remote, no doubt negating the need for the nunchuk.
There's also a few different versions of the Classic Controller, and a couple of nunchuk variants as well.