This book will explore many common features of mobile development and how they are accomplished with PhoneGap. This will include GPS location, maps, media, accelerometer, and much more. PhoneGap is a library that allows developers to interface directly with a mobile device through the use of its Javascript libraries. With the multitude of mobile platforms it is very difficult and expensive to create multiple applications in Java, Objective-C, or other native languages. Through the PhoneGap library, most web developers can convert their existing knowledge of HTML, CSS, and Javascript into mobile phone applications with very little effort.