Simple Cloud API

A new initiative called Simple Cloud API aims to give PHP developers easier access to cloud technologies. The project will produce a new Zend_Cloud component for the Zend Framework.

From the FAQ:

The Simple Cloud API is an open source project that makes it easier for developers to use cloud application services by abstracting insignificant API differences. One of the design goals of the project is to encourage innovation. To this end, the Simple Cloud API can be used for common operations while users can easily drop down to vendor libraries to access value-add features.