The problem is that some of the countries listed in the notice as receiving the device have already flipped the calendar over to November 12th without a word from Apple. The countries listed include Australia, China (Wi-Fi only), Hong Kong, Japan, New Zealand, Singapore and the U.S. The tablet, which features an improved 7.9 inch screen with resolution of 2048 x 1536 and an Apple A7 processor under the hood, will cost $399 for the 16GB Wi-Fi model, $499 for 32GB, $599 for 64GB and $699 for 128GB. Add $130 for cellular support.
Problems with the production of panels for the tablet is said to be the reason for the hold up in launching the device. Specifically, speculation has centered on the problems that Sharp is having with burn-in on the Retina display screens it is producing for the slate.
source: Apple (password req'd) via MacRumors