Ok Version 2 of the dream.

Extend TOH to include a Docking other half.
Clip your jolla into a dock, and hey presto full screen, keyboard, mouse and wired network.

This would require the grunt, i.e. cpu and ram to be increased significantly. And full system bus access to TOH for video, audio, usb and network etc.

Lets face it the devices are far better a computer than only a handfull of years ago.
Take my computer with me wherever I go.