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.
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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.