In a recent release announcement (for ZF 1.11.0 beta 1) I noticed that they now have Zend_Cloud which is, based on their description:
Zend Framework 1.11.0 markes the first official, stable release of Zend_Cloud, Zend Framework’s PHP version of the SimpleCloud API.
It offers support for some of the Amazon and Windows cloud solutions like S3/SQS and BLOB(spelled wrong Windows Azure’s blog storage)/Queue Service. While I didn’t work with Microsoft’s Azure, the S3 from Amazon is commonly used for all kinds of file storage. I believe it is great to be able to save files on S3, never having to fear about hard disk limitations and to some degree about their safety. While for small applications it might not be an obvious better solution, for applications that deal with a lot of files(like image storage for example) it is a big plus.
Although at the moment only S3 is interesting for me they stated they will be adding new features in the near future. Can’t wait that!