A new edition of the Macworld iPhone Superguide is now available. You can read more about it on the Macworld site, and see the range of formats available on this page. In short, the printed book is $19.95, and the cost is $12.95 for the book as a downloadable PDF or on CD-ROM. The prices listed include shipping and handling for the printed and CD-ROM versions. You can also download a free 19-page sample PDF from the book.