Maarten Balliauw has a new post announcing the release of the latest Windows SDK for Azure for PHP, version 4.
The Windows Azure SDK 4 contains some significant feature enhancements. For example, it now incorporates a PHP library for accessing Windows Azure storage, a logging component, a session sharing component and clients for both the Windows Azure and SQL Azure Management API's. On top of that, all of these API's are now also available from the command-line both under Windows and Linux. This means you can batch-script a complete datacenter setup including servers, storage, SQL Azure, firewalls, ... If that's not cool, move to the North Pole.
He includes a few things from the changelog including service management API support for SQL Azure, package scaffolders and various performance enhancements. You can find out more about the release and the latest on the project on the Microsoft Interoperability website.