That's cool, but it's also several hundred dollars more expensive. I feel like the $200US price point really brings thing like this down to another level. Not exactly 'disposable', but more like a small appliance rather than something you've got to really look after.
With obscure form factors, you’re lucky if anything fits your needs. I simply want a tablet with Linux pre-installed, I’d pay iPad price for one if it existed. Pine 64 is nice and I’ll probably buy a few when they come out to play with. But it’s too underpowered to be a daily driver.
This project, well I can’t imagine why they spent all that time cramming a keyboard into it.
I assume you mean via chroot on Android? I would argue that that is still inferior because it's using the Android kernel (which in many cases isn't going to get things like security patches) where this claims to ship with mainline support.