As of the time of writing all the black versions of the iPad mini Wi-Fi (16GB, 32GB, 64GB) are available for pre-order with delivery slated for November 2, while the white versions are set to ship in two weeks.

FORBES: Are You Pre-Ordering An iPad mini?

But the follow on orders have been experiencing longer delays, and the more advanced models of the iPad Mini with mobile data support joining Wi-Fi, have had their release dates pushed back.

FORBES: Apple's Supply Chain Issues Reflected In Stock Pricing

In my harsh battery test, where I play videos back to back with the screen set at 75% and the Wi-Fi on to collect email, the iPad mini exceeded Apple's battery life claim of 10 hours and lasted 10 hours and 27 minutes.

WSJ: Sizing Up the New iPad Mini