To further add to what Pushwall said, Amazon also has something known as the "Pre-order Price Guarantee". Basically, between the day you pre-order and the day they ship the item to you, you'll get the lowest price for the item regardless of the price at the time of your pre-order.

In other words, if you pre-order today at the price of about $590 and Amazon decides to drop the price further to, say, $530* for just one day, then $530 is the price you pay when the item ships out. It's a rather nice option. Sure beats having to cancel and reorder an item should you find out about a price drop.

*And in case there's any confusion, I'm not claiming any insider knowledge or predictions for price drops on the device. I was just making numbers strictly to demonstrate my point.