Play along - create a PinePhone keyboard

[wibble]

How is it supposed to work?

You take it out of your pocket, open the lid, type, close the lid and put it back in your pocket.

What's supposed to be the difficulty here?

For anyone who's not used a Psion or similar, you unfold then hold the keyboard a bit like a gamepad, and type with your thumbs. The Psion made a very quick note-taking device as it was awake as soon as you opened it, and slept on close.

I'm more worried about answering a call with it - it looks like it would be really awkward holding it to your ear. @Jame5's yoga-style hinge would be a real advantage for that. It would also be good to have at least an indicator LED on the outside of the keyboard or back cover since the one on the screen side will be hidden. If we can have it supervised by a low power microcontroller we can have flashing, pwm etc. while the main processor is sleeping too.