Al,
I guess the question is what do these frames look like in sunlight?
And will they handle the rough environment that is a glider cockpit?
You need to find one that has a touch screen (they are out there).
I have seen tiny key ring type ones, and 7" ones, but not much in 5"
or so which is what I envisage to be a useful size.

Let us all know when you have one up and running in your glider. I'm
interested.

Regards, Bernie.