My biggest problem with the idea of developing on a phone, or even on a small tablet (8 inches or less) is the size of the screen, and the difficulty of context

My biggest problem with the idea of developing on a phone, or even on a small tablet (8 inches or less) is the size of the screen, and the difficulty of context switching. I have a 27" and a 20" monitor set up side by side, and I wish I had more screen space. One idea I've toyed with is the idea of using a virtual reality headset. Paired with a bluetooth combination keyboard/touchpad and and a tiling window manager, one could have a (virtual) large display, in a fairly small physical package. I have no idea whether a combination like this would be suitable for working for long periods of time, but it would be compact.