Re: Far from complete
Maybe... personally (i.e. sample size = 1) I suspect people want a keyboard for keyboardy applications like ssh and email and don't care too much which OS underpins it.
That said, you can already get a Bluetooth keyboard for Android devices that are probably already better at being Android devices when compared to the current Gemini iteration. But a truly open & vendor-supported software stack is something that's missing in the marketplace just now. So I can understand the desire for Linux from a freedom/diversity/tinkering/differentiation perspective.