How to set up your iPhone Duo pre-order to make checkout faster

While pre-orders for the iPhone Duo don't start until October 16, Apple will allow you to prepare on Monday. You'll need to as demand is expected to be high.
You can "Get Ready" to pre-order the iPhone Duo starting October 12.
It's usually the case that demand for a new iPhone is high enough that unless you're very fast, they go on backorder. You'll still get one, but it will be weeks later, sometimes months, so it helps to be as quick off the starting blocks as you can.This time, though, the ru