@everyone
I have spoken to ACube:
1) Missing pins/headers are of no use to the end user, so we can relax now
2) Quality of display when connected to a CRT VGA monitor using the DVI-VGA adapter is being investigated. It seems to be ok when the signal is taken directly from the board.
3) The backplate is being worked on. It should present all the apertures for the existent connectors plus USB, 5.1 sound connectors and VGA connector (signal taken directly from the motherboard).