It is available for pre-order at Amazon.com.
Amazon uses a "pre-order" sign-up system where you can be notified when certain items become available.
Having several pre-order dates will reduce the strain on the support systems and technology frameworks of manufacturers.
Three shops down, and my decision not to pre-order Twilight Princess suddenly looked a little foolhardy.
If you're a huge Chesney fan, you can pre-order the CD on Amazon.com.