Do you want to develop mobile apps with Javaand have them work on a variety of devices powered by iOS and Android? Youve come to the right place.This project-driven book shows you how to build portable apps with two amazing open source frameworks, Google Web Tools (GWT) and PhoneGap. With these tools, youll use learn how to write Java code that compiles into cross-platform Javascript and HTML, and discover how to take advantage of features in several popular devices, such as the camera, accelerometer, and GPS.Get started with GWT by building an example Twitter search appBuild a example web app and adapt it for mobile with CSSAdd touch centric controls with the GWT Mobile UI libraryDevelop a working wine journal app that tracks a users GPS locationUse techniques to make a mobile version of your web or desktop appWork with HTML5 Canvas to build a mobile video gamePackage your apps for iOS, webOS, and Android with PhoneGap.