Jason Snell, Macworld:
But while the 11-inch Air is small and light, it doesnâ€™t feel cramped. Part of that is due to the high-resolution display, which packs more pixels into its compact 11.6-inch diagonal screen than fit on the screen of that 13-inch white MacBook. Sporting a 16:9 aspect ratio (1366 by 768 pixels), itâ€™s a bit wider than most Apple laptop displays, and 768 pixels is the bare minimum number of vertical pixels youâ€™d want in a modern Mac display. However, most modern Mac software has been designed with widescreen aspect ratios in mindâ€”and the extra width of the 16:9 display is what keeps it from not feeling cramped.
I wish Mail was widescreen optimized: a three column option would be welcomed.