$Apple(AAPL)$ Securities Times of China says Apple is increasing iPhone Duo production 30%, which would bring the Duo to about 10 million units. Take that for what it's worth in terms of accuracy. I have no idea how Apple determines demand for any product unless they do surveys.
I think sales will be record-breaking high with long queues at stores.
Apple has set up a site to pre-fill all your Duo order info, so when the time comes to pre-order, you just have to press one button to put your order through. Apple makes it quick, easy, and efficient.
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