This reminds me of the orbitouch, which is a keyless keyboard for people with disabilities. It works by having one stick chose a subset of letters, and the oth

This reminds me of the orbitouch, which is a keyless keyboard for people with disabilities. It works by having one stick chose a subset of letters, and the other to letter within that subset. https://orbitouch.com/ https://orbitouch.com/