CNS specializes in server virtualization.  This offering is a key to many organizations as they attempt to make better utilization of their hardware puchases.  Interestly enough Gartner Group continues to pick this technology a top strategic technology at all levels.  The other play for virtualization is the ability to be very flexible.  A server can take a mere 20 minutes to be up and running instead of the traditional week or better to order new hardware and deployment.  Things like Service Pack installation in a controlled environment to be tested before deployment along with rollback technology to keep the environment pristine.  it is very common for organization to create a sandbox environment for development and testing that does not impact production.  The power of having your real enviroment in your sandbox makes testing real.  This technology is also wonderful to build a disaster recovery plan around.  Imagine being able to backup your server to a file and restore it to another machine in minutes and restore services in hours instead of days.