It seems you’d still need a separate keyboard though, or else be very limited in he kind of work you can do.
1. A chorded keyboard: some people are working on this.
2. A keyboard apron: I've built a prototype of one here: https://www.wolframcloud.com/obj/george.w.singer/business/pn...
Verbose mode, please.
Pair it with a cheap tablet of your choice and you have similar functionality and (from what I hear) superior reliability --- at lower overall cost.