I saw a wrist mounted thing the other day, and I was thinking a modern touchscreen version running Linux could legitimately be great with a good mount. This would be perfect for that. You only need a wrist mount that won't make your arm sweaty...
I was thinking this would be a otg deck for traveling. Adding ports galore (hdmi,dp etc) and being fully cast ready - you could dock it anywhere and take everything with you in a small form factor. Working in handheld mode on the plane, then casting/hooking to your hotel room tv with a BT keeb would be a dream. Given the customization inherent, this could blow Samsung Dex out of the water.
I wonder if that keyboard is via a wired interface only. Because something like that would be perfect for a Pico W or ESP32 so that it works detatched. I think this would be great on a desk with a kickstand and the keyboard detatched. There might even be some pins leftover for a "wireless" GPIO header on the keyboard, which would be really cool if you were using the included VESA mount for the tablet
That keyboard looks very similar to various "mini keyboards" on Amazon. I searched for "pc remote keyboard trackpad" and found a couple that are pretty close.
I have had a couple. Don't expect to type out a novel on it. Between the tiny layout, the straight rows, and the mushy matrix, they are barely good enough for searching for movie titles on Kodi. I'd rather use a phone touchscreen keyboard.
I think it's pretty hard to make that sort of call from a single photograph, of pre-release hardware. You've used the literal cheapest common denominator of keyboards that look like this, something you could probably get on aliexpress for a dollar that's been rebranded. Besides that, I'm talking about using either one of two open microcontrollers that would make the device and it's firmware hackable, which is still much cooler than what you probably got from Amazon.