I did note this comment, "In addition, because the users are wearing a headset, they can’t see their keyboard. Asking them to use arrow keys to move around is simple enough, but if they need to type, or enter keyboard shortcuts, it can be hard to do blind."
We used to have typing classes in public schooling where ppl could learn to type without looking at the keyboard, they called it "typing by touch"...is that a lost art????
Does anybody do 10-key by touch anymore either??? Have I gone the way of dinosaurs???