Book excerpt: The Rough Guide to Android Phones™ is the ultimate guide for Android phone users. Showing you all the tips and tricks that ensure your phone performs to its full potential. There's even a complete lowdown on the hottest 100 Android apps. The slick Rough Guide reveals the secrets of this up-and-coming mobile operating system; covering models produced by Motorola, HTC, Samsung and many more. From the basic questions, like 'What is Android', to making the most of its functionality, this is the complete companion to your Android phone. Whether you already have an Android phone or are thinking of buying one, this is the gadget guide you need to make the most of your Android phone.