I got my EON this morning from a UK supplier.
I love it so far - quick and easy build. I already had a nas setup, so just flipped the SD to the EON and it worked out of the box!
My question - There is a J7 header and a ribbon cable connector that are unused.
I just wondered what they are?
Thanks 
i was wondering the same thing, did you find out what purpose it has?
Hello.
Ribbon cable connector is labelled on the pcb facing the pi;
When you look by the side of nas, facing connector, 0 is on your right hand;
From 0 we have : 5V / 5V / 5V / D- / D+ / GND / GND / GND
J7 is not labelled on any face of pcb in my nas ( kickstarter version )