Chapter 1. Let's Begin with Sencha Touch!

With the growing popularity of mobile devices, cell phones, and tablet computers, consumers have quickly moved to embrace touch-based operating systems and applications. This popularity has given developers a wide variety of platforms to choose from Apple's iOS (iPhones, iTouch, and iPad), Google's Android, Windows Mobile 7, and many more. Unfortunately, this rich variety of platforms brings with it an equally rich variety of programming languages to choose from. Picking any single language often locks you into a specific platform or device.

Sencha Touch removes this obstacle by providing a framework based in JavaScript, HTML 5, and CSS. These standards have gained strong support across most modern browsers and mobile devices. By using a framework based on these standards, you can deploy applications to multiple platforms, without having to completely rewrite your code.