I am happy to announce that Windows Media Services (WMS) 2008 RC0 is now live. This version of WMS will install only on Windows Server 2008 RC0 version. Windows Media Services for Windows Server 2008 boasts of a Cache Proxy Plug-in and support for the Server Core installation option.
In addition WMS now supports some advanced features on Standard / Web SKUs. Please refer to the updated feature support table here
Here are some other useful resources:
If you have any feedback/questions, please let us known on the newsgroups.