If someone makes the "non-apple M1" ARM SoC, then I'd be 100% sold on an PineTAB, if it got pen input, too. I would drop all the money I got on that.
2K @ 12" or 13", some USB-C ports, 500GB storage and a good battery. Vanilla butter brain bath for some magnetic dock connector. Standard Linux DE for all I care.
That would be the perfect mobile device.
External mobility module with mobile internet, GPS, small laser beamer, lidar and camera; Compute module with additional graphics or cpu power.
All this would be possible today, although not for pine64.
https://arstechnica.com/gadgets/2020/06/pinebook-pro-review-...
My 10 year old Thinkpad x230 has most of that (retail price circa $100)...