I've read that there is a slight space, or "air gap" between the lcd and glass that make up the display on iPads. Presumably, this gap causes two images that the eye must see at the same time and merge into one. Theoretically, this can cause unnecessary eye strain. I've never heard anyone complaining about eye strain with iPads, but I'm late to the tablet party, and when making a decision I wouldn't want to choose a table that makes my eyes hurt. Is there anything to this, or was it just a slow news day?