Blimey, that's smaller than I expected given the apparently spaciousness of the ports at the back, although they benefit from the entire height of the unit including the hinge.
Have they announced what the screen diagonal is? I envisaged it as only being slightly smaller than my 7 inch eeepc display, but if the screen was that size it'd just fit inside those dimensions but not leave any room for a hinge. Assuming it is a 16:9 display, that would mean if the screen had no border at all, it would cover a height of 86mm and have a diagonal of a comfortable 6.5inches, but given it has a noticeable border all around if I allow a border of 10mm on each side and 5 mm top and bottom, it gives a diagonal of 6 inches pretty much dead.
And now I re-read your opening post, you do say in the second paragraph that it'll have a 6 inch screen. Oh well, at least that seems to tally with the dimensions you've given.