I would like data on this too. I use Dvorak on keyboards and QWERTY on touch screens. I find QWERTY difficult to touch for all the obvious reasons but actuall

I would like data on this too. I use Dvorak on keyboards and QWERTY on touch screens. I find QWERTY difficult to touch for all the obvious reasons but actually pretty good for 2 to 4 fingers typing on a iPhone / iPad. I have seen people typing faster than I do with only 4 fingers and their thumbs, usually with a machine gun style. Dvorak is (great for | forcing you into) touch typing, except that right pinky overuse. It feels good but you don’t really have a choice. My wife doesn’t touch type and is bent over the keyboard, looking down at the keys. Dvorak would not help her until she relaxes down on her chair, and type with more fingers and without looking.