The video above "Handsfree Playstation 3 Control Using Voice and Head Tracking for the Disabled" demonstrates a giant leap forwards towards a holy grail of games accessibility: To be able to play with the controller/s you want to, how you want to.
It would be a truly wonderful thing if players had a way to fully configure control schemes that suit them and not just the "mainstream". Thanks to the versatility of a PC/Mac, if a PS3 can be played using a head-tracker and voice controls I can see no reason why not using any other combination of control methods.
Software assist modes could open up so much more for players. Rapid fire modes are obvious, but how about latching modes for those finding holding buttons down for a long period painful such as in race games? How about randomised moves tied to a single button to open for fight games, as seen in Way of the Exploding Hand 2? How about 4Noah inspired schemes designed to reduce controls further.
One more dream... To see emulated game gestures for the Wii under the control of switch use. I can't see why lots of Wii Sports and Wii games in general couldn't be played using controls other that the Wii remote. The Wii is a fun machine. Doesn't seem right that people are excluded from it so unnecessarily.
Link thanks to an Anonymous comment left on the "One Step Closer?" post.