I don't have any sources, but it certainly tracks with my experience. I use my ipad 3 for pulling up info when I don't want to move. Watching a movie and wond

I don't have any sources, but it certainly tracks with my experience. I use my ipad 3 for pulling up info when I don't want to move. Watching a movie and wonder who that actor is, that sort of thing. But for normal, consistent use? not really.