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The Google Web toolkit (GWT) is a framework from Google that you can use to develop browser-based applications. The GWT allows developers to code in Java and generate JavaScript-based applications.
GWT applications are inherently cross-browser compatible and they are the smallest and fastest browser-based applications.
This chapter will focus on how to develop a GWT application for a mobile phone, using PhoneGap. The steps are based on the GWT PhoneGap library developed by Daniel Kurka. You can download this library from http://code.google.com/p/gwt-phonegap/.
Knowledge of how to develop GWT-based applications is essential. If you are new to GWT-based applications, you can visit http://code.google.com/webtoolkit/doc/latest/tutorial/index.html to learn more about GWT.