Received my TechNet Flash today and it said:
The Windows Server code-named “Longhorn” beta program will be kicking off soon, and that means it’s time to pre-register to get your hands on the next generation of the Windows Server operating system. When you Register for Windows Server code-named “Longhorn” beta through the Beta Central program, you will be notified when the beta is available. You’ll also be notified as the additional resources are available, such as Web forums, virtual labs, and other e-learning tools. In the meantime, acquaint yourself with all that’s new in Windows Server “Longhorn”, including improvements in networking, advanced security features, remote application access, centralized server role management, performance and reliability monitoring tools, failover clustering, deployment, and the file system.