The new pick-and-place machine at the DIY Drones factory is now in full production, and we're filling boxes like this with the IMU shields in preparation for the ArduCopter commercial launch and APM public beta code (the code will probably go live tonight). Right now we can make about 120 boards a day, and can ramp up to 150/day if needed. Right now we're filling back orders, but it should be back in stock next week.
Look for pricing and pre-order plans for ArduCopter over the next week. This is going to be big!