jQuery Mobile 发布了 1.4 的首个 Alpha 版本，下载地址：
http://jquerymobile.com/resources/download/jquery.mobile-1.4.0-alpha.1.zip
该版本进一步提升应用的性能，UI 部件了做了很多改进，包括：
New tab widget
New widget Toolbar - will handle header and footer bars, it should be scrollable horizontally
Support using widgets like toolbars, popups, panels outside of a page - Finally but still buggy, popups still don’t work outside
New flip switch widget - Much better then old one, no more flunky animations
New filterable widget - Still buggy
New option for taphold event $.special.event.tap.emitTapOnTaphold default = true;
All widgets (excluding listview, tables, and selectmenu) have options that can be set after the widget has been instantiated
All widgets (excluding listview, tables, and selectmenu) have an option named “enhanced” that allows you to provide the markup the widget itself would generate, thus saving startup time
此外该版本还移除了一些废弃的功能，详细的介绍请看http://www.gajotres.net/whats-new-in-jquery-mobile-1-4/
来自:开源中国社区
