Now Oracle is releasing Free Server virtualization software.
First it was RedHat and Linux, now it is with Virtualization.
It is Obvious that Oracle is using Xen (Open Source Virtualization software) as their virutalization engine and now they are saying Oracle released Free Server Virtualization.
Link where they are posting "Paravirtualized driver for HVM guests" based on Xen h3r3
Oracle VM is free server virtualization software that fully supports both Oracle and non-Oracle applications.
Oracle is providing free templates for different virtual machines
Oracle Virtualization Center link h3r3