Watched some of the launch stream for this today and I have to admit I am very drawn to the new device. I've been reviewing ultrabooks for a new laptop for business and this might well push me down the Surface route. Very impressed, but need to wait for formal reviews and supply to start appearing!
http://www.anandtech.com/show/8034/microsoft-surface-event-live-blog
Already placed a preorder with our business retailer..
Been a very happy user of both Surface pro and Surface 2 pro, and would dream of swapping for anything but a new surface