Eileen Brown notes that a new beta of the “Monad” Shell is publicly available for download:
Windows “Monad” Shell is a new interactive command-line and task-based scripting technology for Windows that enables administrators to more efficiently and securely automate and control system management tasks on both desktops and servers.
Download “Monad” for X86 or X64 from the Download Center. Watch “Monad” Architect Jeffrey Snover demonstrate “Monad” on a Channel 9 MSDN Video Interview and via two webcasts.
The betas are labeled “Beta 2 (for .NET Framework 2.0 Beta 2).” Eileen also provides some related blog links.