When you type in hardware keyboards, do you need to look at them? I hardly look at the SwiftKey keyboard except occasionally to confirm what keys I'm hitting.

When you type in hardware keyboards, do you need to look at them? I hardly look at the SwiftKey keyboard except occasionally to confirm what keys I'm hitting. A surface that can "project" arbitary tactile shapes with different strengths of feedback can let you orientate without looking. In fact it can even do Braille for the blind if the resolution was high enough!