Sencha Touch Question:

Sencha Touch is a user interface (UI) JavaScript library, or framework, specifically built for the Mobile Web. It can be used by Web developers to develop user interfaces for mobile web applications that look and feel like native applications on supported mobile devices. It is fully based on web standards such as HTML5, CSS3 and JavaScript. Sencha Touch aims to enable developers to quickly and easily create HTML5 based mobile apps that work on Android, iOS, Windows, Tizen and BlackBerry devices, and produce a native-app-like experience inside a browser.