When browsing http://support.apple.com/manuals/# you'll notice that Apple has yet to publish iOS 6's user guide for iPad. It's no mistake. They publish one for every major firmware but have yet published one for iPad for iOS 6. People on Apple's support forums have also noticed (and complain) about the lack of manual, here and here. When the iPad mini comes Apple will publish it as both an ebook and PDF. It's better to kill three birds (iPad 2, iPad 3 and iPad mini) with one stone than it is to with three (or two) stones. Each manual has been published on the device's respective release date yet. Be it EarPods or iPods. iOS 6 has been out in the air for almost a month (née 9/19) now. Still no sign of it for iPad. If the iPad mini is to be released on November 2nd, then expect a same day manual release.