Since cloud computing is all about virtualization and server consolidation these kind of numbers really concern me? Last week during the SOA-R education session, Bob Lozano of Appistry actually talked about how enterprises are integrating public and private clouds today in order to meet virtualization, consolidation and cost cutting goals. His full presentation is available in the SOA-R Interactive Networking Group wiki.
Elastra is also addressing this enerprise need. They are working on a version of Cloud Server for data center VMware environments, their "private clouds." The company's pitch is that IT departments need better tools to specify requirements and configure software to run on physical or virtual servers, regardless of whether the underlying systems are on premises or out in the public cloud. See John Foley's blog on Information Week in The Rise Of Enterprise-Class Cloud Computing.
Sam Charrington is even more definitive in the Open Web Developer's Journal:
"We're still relatively early in the cloud computing hype cycle but I strongly believe that in the future, most if not all server-side software applications will be deployed in a cloud-computing-like manner. That is not to say that all applications will be run in one of exactly five global clouds. On the contrary, every enterprise will have one or more 'clouds' into which they deploy applications."
CIO's should really re-think their views on cloud computing.