Ubuntu Server Edition offers technology and resources to make a private or public cloud.

Unitrends also offers a multi-tenant public cloud based service that the company calls "Vault2Cloud."

Cloud computing only began to come to real prominence in 2007 when Google decided to move parts of its email service to a public cloud.

The isolation between tenants of a public cloud is performed via access control mechanism.

Your business security is too important to trust using the public cloud.

Fujitsu Infrastructure as a service is the new, third way between traditional infrastructure ownership and the public cloud.

I'd be pretty surprised if any of those types of companies want to put much in a public cloud.

Oracle is in a tough spot for the cloud - data that isn't sensitive is already being used by these companies on other public clouds.

PaaS and the public cloud are further back.

Because the point of public cloud services is rapid deployment and scalability on your terms.