Windows IT Pro reports that Microsoft has announced a licensing change to Remote Desktop Services (RDS), allowing service providers (partners) to use RDS to offer remote connections to applications and shared desktops that are being hosted in a VM on Windows Azure.
The Microsoft Product User Rights has been updated to also reflect the changes: Microsoft Product Use Rights and Product List. The licensing has been updated in the Windows Azure Licensing FAQ here: Remote Desktop Services on Windows Azure (as per the below snippet):
Note that the licensing changes are only for partners, not Enterprises or end users.
This table may also be useful for partners wanting to know what licensing options are available for other Microsoft Server workloads supported by Windows Azure Virtual Machines from http://www.windowsazure.com/en-us/pricing/licensing-faq/#header-3