Just to start the conversation...
There are several models and expansion options. AMD powered with good IO options, too.
Swivel screen like the Zaurus, with touch.. nice.
https://www.indiegogo.com/projects/pocket-4-modular-full-featured-handheld-ai-pc#/updates/allAI 9 HX 370 and 8840U, 64GB RAM, 2TB SSD, RS-232, KVM, 4G LTE, microSD card reader
Still, the price is high...if not for the size, one can get the ASUS Zenbook S16 with similar specs cheaper.
Most importantly the keyboard. Its not a reform like mechanical one... but does it hold up ?
There is a YouTube video review of the Pocket 4 in the link above, but it does not go into the keyboard at all...