Take an Atari Portfolio, make it thinner and have the screen fill the upper shell of the clamshell and you're on the right track. And the cpu can be low power in terms of horsepower as well as electricity usage. A few years old non-premium smartphone arm cpu will do. Pocket Chip production revived and this time put in a clamshell will do. Give me a command shell, more than a thumb keyboard, and network access. That's all I ask of it.
I still want a pocket clamshell computer. Low power cpu, it could be a black and white screen (heck, a pixelly lcd screen as long as I get at least 80x25 readable characters), storage to more than just an sd card (but emmc+sd slot is acceptable), wifi, and a swappable battery. Also, physical ethernet port, none of this use a usb adapter nonsense. If I'm somewhere I can plug in, let me plug in with no more than a cable.
For April Fools I will be continuing my long running prank of pretending to be a mature responsible adult. I'm not sure how no one has called me on it yet anytime in the last twenty-five years.
Tossing this question out into the aether: Anyone remember a book from the 80s that was a how-to guide to writing your own database programs in BASIC? I know or local library had it but they have tossed all their books that dealt with basic.