Typing with eye movement. https://www.optikey.org/ Typing with head pointer. https://www.alimed.com/adjustable-head-pointer.html One handed typing. Various keyboard layouts. https://en.wikipedia.org/wiki/Dvorak_keyboard_layout#Variant... Speed recognition, Text to Speech, Windows accessibility features.

Products do get worked on and have been released. But yes, more work needs to be done and this product is a welcome addition.