Always nice to see something free from Apple, and the timing couldn't be better. The iBooks version of the iPhone User Guide for iOS 6 is available on the iBookstore.
Apple isn't much on paper manuals these days; most Apple products come with a thin little guide, so many users get their tips from websites like TUAW and others.
This Apple e-book is quite complete, with chapters explaining all the new features in iOS 6. I found the chapter on Siri and changes in the camera app most helpful. The book is illustrated, and every bit as good as something you'd buy online or at a book
