Here's a tour of the ICOO Tablet factory, it's on a Saturday on the day that I visit them so most of their 150 workers are at home. They make Rockchip RK3066, $155 10.1" Allwinner A31, A31S, A20, A13 for $48, ATM7029 and many other devices in this factory, they can output up to about 2000 tablets per day.