INTRODUCTION | 3 Of course, features introduced last year with iOS 8 continue to be improved upon. For example, using the Continuity and Handoff features, you can begin using one application on your iPhone and then pick up exactly where you left off on your iPad or Mac (or vice versa). In addition, it’s possible to answer incoming calls made to your iPhone from your iPad, Apple Watch, or Mac, as long as your smartphone is nearby and wirelessly linked with your other computers and devices. NOTE Throughout this book, an “iOS mobile device” refers to any Apple iPhone, iPad, or Apple mobile device that’s running the iOS 9 operating system. If you plan to continue using iOS 8 with your iOS mobile device, pick up a copy of iPad and iPhone Tips and Tricks , Fourth Edition, which focuses on the older version of Apple’s mobile device operating system. If you’re a veteran iPhone or iPad user, when you upgrade from iOS 8 to iOS 9, you’ll discover that the graphical interface is pretty similar to what you’re already accustomed to, although improvements have been made. As for you first-time iPhone or iPad users, congratulations! Now is the perfect time to introduce yourself to these mobile devices, or switch from another smartphone or tablet to what Apple has to offer. Not only can you expect an exciting experience as you begin using your new iPhone or iPad hardware that’s running the iOS 9 operating system, but you have the opportunity to access the App Store to utilize any of the more than 1.5 million third-party apps that can greatly expand the capabilities of these mobile devices. WHAT’S NEW Thanks to the new Wallet app for the iPhone, it’s even easier, faster, and more secure to utilize Apple Pay to pay for purchases at participating retail stores and restaurants, as well as online from within apps. This past year, not only have hundreds of new banks and credit unions begun supporting Apple Pay, but thousands of additional merchants now accept it. In fact, you probably have seen the Apple Pay logo displayed near the checkout counter at many of your favorite retail stores, and these sightings will become even more frequent in 2016 and beyond. To view a list of Apple Pay participating banks in the United States and United Kingdom, visit https://support.apple.com/en-us/HT204916. In addition, Apple Pay now supports the Discover credit card, as well as store credit cards from participating merchants, and the new Wallet app can also be used to manage retail store reward cards, so when you adopt the Wallet app into your life, you can dramatically slim down your traditional wallet.