Took me 1 year to rewire my brain to switch from Qwerty to Dvorak (I struggled with from RSI for nearly 6 years) and nearly 2 years to gain full speed. It is hard, very hard for the brain. It is mentally tiring to rewire your brain like this and you will do your job at a much worse efficiency (forget pair programming for a while). You need new keyboard stickers also. Great job at making this idea but it is not practical.