Notkia puts a Linux PC inside the shell of a Nokia 1680 cellphone

I want a cell-phone format computer that has a port for power, keyboard, mouse, display, and a port for a memory card. Just a black-box with ports. With USB-C this could probably be just a power and USB port that I can attach to an external peripheral box. The peripheral box could have the same form-factor.

That is, a CPU / memory / wifi device I can carry in a pocket.

This was the exact plan for N900, sadly it failed (Neo900 project)

will be nice to do the same with one of the full keyboard devices like communicator or E72