Zend had released their latest version 0.7.0 of Zend Framework, which include a lot more updates from their previous verison including Locale related, and measurement conversion functionalities. They also seem to have a new Zend_Memory class which is an API to manage large data in a limited amount of memory to overcome the memory limits imposed on PHP scripts on most servers. I’ll be test driving this functionality soon
Zend Framework Preview Release 0.7.0 includes many significant features and enhancements:

• Locale-management component
• Locale-aware Date parsing and formatting class
• New translation-management component with gettext support
• Comprehensive class for working with measurements and conversions
• New prototype class for filtering and validation parameters
• New class for managing memory usage in PHP applications
• Many other improvements in current components such as MVC, Session, Gdata, HTTP Client, Search, XmlRpc, and others
• Many other enhancements to test suites and documentation.

Link to release announcement: Zend Developer Zone | Zend Framework 0.7.0 Released

Download: http://framework.zend.com/download