Nothing about 3D... how would 3D even be an adversity to someone disabled? Especially since the only problem here really is positioning, and when the feature can be disabled, there's no problem at all.
The Wii and DS set themselves up to have more immersion by demanding more interaction through dexterity. Normal peeps don't have a problem with this, because the games require less action than essentially all other feathers of daily life. But for a lot of disabled gamers, the Wii and DS were starting to push the boundaries of what they can play. Requiring lifting and positioning of a stylus, and then aiming and swinging of a wiimote basically screws off anyone who has loss a good amount of muscle functionality. No, not all disabled gamers are kicked off the gaming bucket. But there's a bunch of people who are, because where Nintendo can have both controller and unique controls, they most often push the unique, even though a small amount of effort would make playing possible of a larger audience range. My brother has Duchenne's Muscular Dystrophy, and at this point, all he can do is move his fingers. Buttons are pretty much doable so long as they're easy to get access too--and as long as you can move your fingers. We can set him up and prop him around a controller, and he's pretty much able to play most things like he did growing up on the NES and SNES, N64, whatever. But this demand of higher dexterity is ostracizing gamers who otherwise have no reason to be. Fans of Nintendo are getting shafted. A minority, very much so, but that doesn't make it any more justified.
