Ubuntu Server will be one of the first operating systems offered to customers of VMware's infrastructure-as-a-service (IaaS) cloud, with OS images that should be portable across clouds operated by VMware and rivals such as Amazon.
vCloud Hybrid Service, set to go live in September, will support all 90 or so operating systems certified to run on the vSphere virtualization platform. For most of those, customers will need to install the operating system themselves. A select few will be published by VMware on what's basically an app store, making them a bit more accessible.
Read more at Ars Technica.