Well for the iBooks example: left image (429x569): http://images.apple.com/ipad/features/images/retina_gallery_1_left.jpg http://images.apple.com/ipad/features

Well for the iBooks example: left image (429x569): http://images.apple.com/ipad/features/images/retina_gallery_1_left.jpg http://images.apple.com/ipad/features/images/retina_gallery_... right image under the loupe (1536x2048): http://www.apple.com/ipad/features/images/loupehr1.jpg http://www.apple.com/ipad/features/images/loupehr1.jpg