http://technet.microsoft.com/en-us/evalcenter/hh670538.aspx

The next release of Windows Server, Windows Server 2012, will offer businesses and hosting providers a scalable, dynamic, and multitenant-aware, cloud-optimized infrastructure. It securely connects across premises and helps IT  Professionals to respond to business needs faster and more efficiently.

Windows Server 2012 Release Candidate (RC):

  • Takes you beyond virtualization
  • Delivers the power of many servers with the simplicity of one
  • Opens the door to every app on any cloud
  • Enables the modern work style

Need more information? See the product details page.