A handful of discoveries on Saturday may have all but confirmed suspicions of a new iPad with a Retina Display. Both Arizona State University researcher Rafeed Chaudhury and mobile app writer Steve Troughton-Smith found images in both the current iBooks 1.2 and its 1.1 predecessor showing background and bookmark images that fit a "2X" iPad resolution that doesn't exist before. The wood tile image (below) is 1,536 pixels wide, twice the width of the iPad's screen, and by extension points to a 2048x1536 display on the future Apple tablet.
