Cyber Dimensions....

Windows 7 Preview is PowerShell a souped-up command line and scripting GUI that frees you, finally, from the limits of DOS batch scripts. PowerShell is available as a free download for XP and Vista users, too.

A user Added : "you can now use Unix commands in the command line nor more having to differentiate between "ls" and "dir" to view the contents of a directory, but i'm sure thats just the tip of the iceberg."
It is lot to manage an IIS 7 single box or an IIS 7 web farm with Windows PowerShell.