Maarten Balliauw has a new post to his blog with some resources you can use if you're looking to get started using PHP and Azure for your application.
The good reason for not being that active on my blog lately is the fact that I’m producing content for Microsoft’s Interoperability team. Have you ever wanted to start working with Windows Azure and PHP? No idea where to start? Meet the official portal: Developing Applications for Azure with PHP.
He also links to a few specific resources that are cover Azure+Eclipse, the Azure SDK, using the Queue and using blob storage.