More importantly: "The display contains tiny mirrors that consume power only when they're moving, easing battery drain. Mirasol displays also quickly change from one image to the next and show video."
There is an interesting video here:
http://www.youtube.com/watch?v=ag4HG...eature=related.
How energy use compares between the two for basic screen updates will be very interesting to see. Ofcourse the next problem will be low battery life due to unnecessary animations and fancy graphics, I suppose we should wait and see what happens.