Comment Re:Wait, what? (Score 3, Informative) 185
OpenStack is a virtualization and object storage infrastructure and management system. It is not an operating system or a Linux distribution. It's an application. Rackspace is a major sponsor of the project, and eats their own dog food. Nova is the VM side, and supports (to varying degrees) pretty much every hypervisor. Swift is the object store that Rackspace Cloud Files is based on.
This should not be compared to kernels, Linux or anything of the sort. "...a major threat to VMware, Citrix and Parallels datacenter management products" would be a lot better.
