The Visual Studio 2013 and MSDN Licensing whitepaper has been updated for May 2014. The key change is that MSDN subscribers can now access Windows client VMs in Azure (page 14). In addition: MSDN Platforms and Visual Studio Test Professional with MSDN subscriptions now also include a certain amount of Azure services (page 13); the Purchasing Channels table is updated to show that an MSDN Platforms subscription is now available under Open (page 7); and there are more details given for purchasing Visual Studio Online (page 10).
Download it here: http://bit.ly/1hkf7gn.