Yes, you can have any surface finish.
The Samsung Q1, IIRC, was not a "proper tablet" which has an inductive touch screen, which can be operated only with the special pen. This is both good and bad: good because you can keep the thing on your knee and have bits of paper lying on top and you can write on them, etc, and bad because you have to use that special pen all the time you want to interact with it.
IMHO the inductive touch screen is better because it eliminates accidental interactions which are the last thing you want in the cockpit scenario. Also, most interaction is just fishing out approach plates, which doesn't need much activity.