The JIngPad A1 seems to be coming close to release and several prototypes have been sent out. I have to say, it's looking pretty good! I have ordered one myself and I'd be happy to discuss it further when I get it.
Contrary to the pinephone/pinetab, this device is targeting a wide audience of end users and not just enthusiasts and developers. It uses relatively high end components, but likely as a result it does not have mainline Linux kernel support. (yet?)
Here's another look from TuxPhones: https://tuxphones.com/jingos-linux-tablet-review-part-1/
I seem to recall that some "le reddit sleuth" decided that this was a complete scam and that they had nothing but photoshopped iPads and many people decided that they were right. ("We did it, reddit!")