the docks and keyboard looks interesting, but the case looks like a lawsuit waiting to happen as i think apple have a patent application on their ipad case.

and looking at the usb and tv out cables seems to confirm that its a PDMI port. Or at least the same physical port (tho i wonder how they do the analog bit unless there is a chip hiding in the cable somewhere).

And is suspect the docks do displayport to hdmi conversion, as there is not enough displayport lanes in a PDMI connector to support DP++ mode.