The idea of having a phone that can Desktop seems like an end-game for an all in one device. Take it with you anywhere, come home, plug to dock, start working, undock, connect to keyboard+screen device - laptop - disassemble keyboard+screen, take screen - tablet.

The idea of having a phone that can Desktop seems like an end-game for an all in one device. Take it with you anywhere, come home, plug to dock, start working, undock, connect to keyboard+screen device - laptop - disassemble keyboard+screen, take screen - tablet.
https://volla.online/de/index.html

Take a step further and make the form factor into a watch. 

Having a Tablet, Laptop, Watch, and Phone is what I would call Handheld Hell(?)