12-24-2019, 06:44 AM
If you do it as a screen protector it'll distort the screen image, but depending on use case that may be fine. Something similar was discussed as an assistive technology for the openmoko but I don't think anyone ever made it. Another option would be to have it on a flap that you could pop down when you wanted to see the whole screen. Sony-Ericsson did that on one or two of their Symbian-era touchscreen phones. The small key area might be a problem with a capacitive screen- in those days it was a resistive touchscreen so small contact area was an advantage not a disadvantage.
