1. Resolution of 2304x1440 which means at Retina this is 1152x720!. This is worse than the 11 inch air, much less the 13 inch 1440x900. I don't think people realize how cramped this will seem if you start doing work on this laptop.
2. single port might be cool, but I suspect everyone will have to pony up for a usb multi-port dongle to make this work. everyone is saying single port will suffice -- battery will last 9 hours but try driving a monitor and doing some work. Don't be surprised if you get 3-4 hours. Then what do you do. Plug it off and wait for 1 hour to recharge? What if you need to do development, how do you plug your device. Yeah the usb dongle will be needed which kind of defeats the point of having a single port.