I saw the videos and it looks really innovative and great. Although, my concern is that it will not catch on, because people don't usually like to learn "two"

I saw the videos and it looks really innovative and great. Although, my concern is that it will not catch on, because people don't usually like to learn "two" keyboards, even though Textblade is essentially a QWERTY keyboard. The same happened with Dvorak and other variations of the keyboard. While it's easier to type on Dvorak (my own experience), you're going to have to type in QWERTY on other computers. Sometimes you'll get confused about where keys are. This is also true when switching from Mac to PC and vice-versa. I spend an hour on a PC and when I switch back to Mac, I automatically press Fn instead of CMD.