There’s a good new Windows Server 2012 R2 Licensing Guide available. Three key takeaways: Windows Server 2012 CALs can be used with Windows Server 2012 R2 (which we’d expect), the price of Datacenter edition has increased (now recommend Datacenter edition for customers who have 13 VMs or more running), and the licensing terms have been expanded for virtualisation in Essentials edition (see the FAQ on page 12). Download the guide here: http://bit.ly/1cPL51I