Do you have any idea how tiny the text would be, how small your icons would be, and how tiny and thin the little menubar at the top would be at that resolution on a 13" display? The 1440x900 on the new 13" is really pushing it as far as super-high resolution smaller displays go. And you are asking for 1080p resolution at that size? I even think the PPI on the 17" at 1920x1200 is too tiny for me, I couldn't go with one of those even....and on a 13"??? Please...it would be unbearably difficult to use anything that small running at that resolution unless it was an OS designed like the iOS for use on the retina display at that resolution. MacOS does not scale like that, so it would be really a horrible experience using the OS.