jQuery Mobile is a Touch-Optimized Web Framework for Smartphones & Tablets. it’s a unified user interface system for all popular mobile device platforms, built on the rock-solid jQuery and jQuery UI foundation. Its lightweight code is built with progressive enhancement, and has a flexible, easily themeable design.
It main aim to provide tools to build dynamic touch interfaces that will adapt gracefully to a range of device form factors and design a single highly branded and customized web application that will work on all popular smartphone and tablet platforms.
it include both layouts (lists, detail panes, overlays) and a rich set of form controls and UI widgets (toggles, sliders, tabs). The ThemeRoller based designs help you to built custom mobile themes for your application easily and quickly. Currently jQuery Mobile is under development for late 2010.
Visit : jQuery Mobile