This seems neat, but I'd like to see a study some sort on what sort of benefits (if any) it has over the long term. It would be interesting to see if developer

This seems neat, but I'd like to see a study some sort on what sort of benefits (if any) it has over the long term. It would be interesting to see if developers of these kinds of devices can eventually progress to one reliably driving a keyboard at anything approaching normal typing speed.