provides a platform for building HTML5 based web sites for a great mobile web browsing experience. It provides a suite of features that make it very simple to build a web application that works great on a mobile device.
The main focus of jQuery Mobile interaction is lists. These lists make it very easy to navigate using a mobile device. In many cases you'll want to re-think the interaction flow of your application to support this list based navigation. I use a linked set of web pages with lists of options. The user is able to quickly hone-in on the functions they need. Once you pick the correct option, you can use navigation bars, tabs, and mobile friendly forms to further enhance the interactivity of your application. You can also use collapsible content sections to make browsing content on a mobile device easier.
jQuery Mobile supports all popular mobile platforms. This allows you to focus on your application, and let jQuery Mobile handle the platform specific details.
The latest version is jQuery Mobile 1.0.1. It includes a nice set of Demos and Documentation.
I chose jQuery Mobile for the comprehensive set of examples and documentation, as well as the collective wisdom from searching that seemed to indicate jQuery Mobile was the quickest way to get going if you are already using jQuery for your application.