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I vote 1920x1080 if it's something like 13''+.  I really like high def stuff but typically that makes it more expensive. I think this project would benefit from having a cheap model that will enable devs to buy it out of curiosity / on a whim. Shouldn't be too high end, at the same time the display should be good enough for very clear text, and have decent viewing angles / not too reflective.

+1. I think it's important and it will appeal to the privacy concerned crowd.
For instance other than the obvious wifi kill switch, if the laptop ends up having things like webcam I'd very much want a kill switch on that too.