Download or read book IPhone 4S Portable Genius written by Paul McFedries and published by John Wiley & Sons. This book was released on 2011-11-29 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shares numerous tips and techniques for maximizing the features of the iPhone 4S, including coverage of such functions as FaceTime video calling, HD video recording, and simultaneous apps.