Well, it sounds good in theory.

Here's a headline that needed to be thought about a little more closely: Brain-Controlled Wheelchair is "95 Percent Accurate". Which would be great for quadriplegics, but what happens that 5% of the time when the controls don't work properly? Run you into a wall? Off a bridge? Might have to hold off on making this widely available, until it's got server-like uptime. I'll take my chances at 99.9%. Incidentally, I've got a great idea for an extreme sport: inaccurate-mind-control wheelchair racing! Can you imagine NASCAR with steering that only works 95% of the time? You can bet George Carlin did (RIP).