A draft of the Open Cloud Principles (OCP) has been released following a week of intensive development and public and private community consultation. The requirements are clear and concise, striking a good balance between the needs of consumers and vendors. Just as "Open Source" was intended as a more "business friendly" version of Free Software, "Open Cloud" promises to deliver the same for cloud computing.
You can always obtain the latest version from Google Code:
After resolving any objections by way of a consensus process the draft will transition to the final version and become the basis on which licesnses for use of the "Open Cloud" trademark will be issued.