A Nintendo Switch Phone?

I posted this thread to the Nintendo Switch sub yesterday and got absolutely obliterated for it.

It's piqued my interest though on how far away we are from a truly portable, phone/handheld combo.

With VR and machine learning focusing so heavy in the GPU space, the size of the GPU hardware is getting to a point where its nearing viability, right? or wrong?

Battery tech is accelerating too due to the electric vehicle market, we must be getting close.

I feel the switch is the first real step in that direction. Thoughts?