SoC Allwinner A20 $8 (I assume only a bit more expensive than last year's A10 at $7)
RAM chip $4 per 4 gigabit. (512 MB) x4 = $16. (Dram exchange)
Flash 8GB $2 (dram exchange)
Gigabit Ethernet PHY $4 (guesstimate based on old data)
Intermediate total ($30)

Do you happen to know the price of the following:

Wifi+BT chip (it seems to have antenna on chip)

How much for ports?
VGA
HDMI
TOSLI NK
RJ45
2X USB
PCB (board itself)
headphones audio out
MicroSD slot

Assembly work
$4 ?

Cables
Package

This will give us a very rough gross profit margin of Cubie.