Adobe® Flash® Builder® 4.5 software, formerly Adobe Flex® Builder®, is an Eclipse™ based development tool for rapidly building expressive mobile, web, and desktop applications using ActionScript® and the open source Flex framework. Rich expressive experiences Create more intuitive, engaging applications to help people understand and use data to support key business activities, leading to increased levels of productivity and effectiveness. Mobile apps for Android, iOS, and BlackBerry Tablet OS Benefit from new support for mobile application development and testing, enabling the use of a common codebase to build apps for Android™, iOS, and BlackBerry Tablet OS while sharing code from web applications. More productivity, more power Accelerate coding and testing of Flex and ActionScript projects using extensive new and improved tooling features. New integrated PHP tooling support Benefit from an optimized Flex/PHP development experience using the integrated copy of Zend Studio 8 software included in Flash Builder 4.5 for PHP.