Kendo UI - Javascript Framework

Kendo UI is a HTML5, jQuery based javascript framework for building Rich Javacsript Apps.
Apart from rich UI controls, Kendo UI includes a JavaScript DataSource, cross-device Drag and Drop API and Templates.

Download Kendo UI : http://www.kendoui.com/download.aspx

Kendo UI is dual-licensed, Commercial and Open Source (GPLv3). Learn more about Kendo UI licensing : http://www.kendoui.com/faq/licensing.aspx

Demos:
Web / HTML5 : http://demos.kendoui.com/web/overview/index.html
Data Visualization : http://demos.kendoui.com/dataviz/overview/index.html
Mobile : http://demos.kendoui.com/mobile/simulator/