True.
Some stuff I'm aware of:
- Application partitions: creation of virtual development environments that resemble similar features in mainframes
- Must add a "reason" for shutdown of the server

- I believe that there is also an improved version of the Active Directory
- IIS 6.0: There is an article in the MSDN magazine if you are interested in improvements to IIS 6.0
- The .NET Framework will likely be integrated into the OS
I think that's about all I know for now. I want to try out beta 3 but I'm so out of time these days.