Sencha 是由 ExtJS、jQTouch 以及 Raphael 三个项目合并而成的一个新项目。
Sencha Products
Ext JS for web developers -- for quickly building rich, sustainable web applications for desktop browsers;
Ext GWT for Java developers -- enables Java developers to build rich user experiences leveraging the Google Web Toolkit compiler;
Ext Designer -- for easily assembling user interfaces using drag-and-drop functionality.
Sencha Labs
jQTouch: a progressive enhancement style, mobile library providing lightweight animation and UI plugin for JQuery;
Raphaël: a rich SVG library for developing vector graphics applications on the web;
Connect: an application framework that combines Rack and Node.js to provide a lean, event-driven application server.
官方首页：http://www.sencha.com/
免费下载：http://www.sencha.com/products/gxt/download/?dl=extgwt211&ref=extgwtgreenbutton
来自:开源中国社区
