The iPhone Book 2 has been revised to include even more on the iPhone 4S and iCloud, featuring over 250 essential tips and more than 60 of the latest and greatest apps. Featuring: Ultimate guide to the iPhone - Get the most out of your device. Lifestyle - In-depth guides that will help enhance your day-to-day life. Productivity - Get organised and manage your tasks with the iPhone. The essential iPhone apps - Applications to enhance your iPhone.