Mirrors were my first thought as well, though in a slightly different way; you could have the mirror track the scene instead, counteracting head movement during a single frame's persistence and then snapping back between frames to continue the motion (probably with some display that could provide partial-frame persistence). It seems like this would address VOR, which from my reading of the article sounded like a bigger problem than saccading. A quick googling turned up piezo mirrors [1] with specs that look like they'd be in the right ballpark.
[1] http://www.physikinstrumente.com/en/products/prdetail.php?so...