Conceivably, chording (full text, not steno shorthand) could be quite fast, but that would require some real dexterity, and if you can easily get 100+ wpm from touch-typing, the marginal gains just don’t seem like they would be worth it. As someone who uses the editing keys, symbols, and modifier keys a lot (and often the numeric keypad), these stripped-down keyboards strike me as a cute knockoff toy - a quarter machine keyboard.
