From Zend Technologies
Zend Studio for Eclipse combines proven capabilities to create the worlds most powerful IDE for Rich Internet Applications (RIAs). Studio's powerful developer tools combined with Adobe Flex Builder and integration with Zend Framework lets developers build RIAs faster and easier.
Zend and Adobe are collaborating to simplify development of RIAs using Flex by integrating Action Message Format (AMF) into Zend Framework. Since Zend Studio and Adobe Flex Builder both use Eclipse the developer has a powerful set of capabilities with a unified user experience.
Develop Code Faster
Zend Studio is the only Integrated Development Environment (IDE) available for professional developers that encompasses all the code editing capabilities needed to develop modern business applications. It includes a powerful code editor with support for all web formats, Zend Framework Integration, Web Services support, access to hundreds of predefined code templates and PHPDoc support. These features combine to provide unprecedented
800MHz processor, 256MB RAM, 200MB of hard disk space