The Windows version number in Windows Azure Platform

I finished a prototype of performance monitoring system yesterday. One of its functions is to query the version number of running systems.

So then it returns:
Microsoft Windows [Version 6.0.6002]
According to the version number given, the possible Windows system in Windows Azure Platform should be either Windows Vista or Windows Server 2008. Obviously, as a server operating system, it is unlikely to be Windows Vista. Therefore, it is for sure that an Azure Instance runs Windows Server 2008 in it.

It is interesting that the newest server version, Windows Server 2008 R2, does not sit inside Windows Azure Platform. Is the Azure Team also waiting for the Service Pack 1 of Windows Server 2008 R2? To make sure that the new system is safe enough?