We’ve just published a new screencast ! 
vOneCloud is a CentOS virtual appliance for vSphere that deploys an enterprise-ready OpenNebula cloud in just a few minutes. The infrastructure is managed by already familiar VMware tools (such as vSphere and vCenter Operations Manager), whereas the provisioning, elasticity and multi-tenancy cloud features are offered by OpenNebula.
As an open source replacement for vRealize, OpenNebula is especially suitable for companies that want to create a self-service cloud environment on top of their VMware infrastructure without having to retool their entire stack.
For more details: http://vonecloud.opennebula.io