I was on the early beta's of PowerShell (I still hate the name, although the name 'Monad' did lend itself to an unfortunate gnu-ified name), and am stoked to see it finally hit 1.0. What's also awesome is to see Jeffrey Snover's enthusiasm seems have gone viral inside Microsoft... PowerShell is up in everything.
THe latest video on Channel9 shows PowerShell as applied to IIS7, as well as a few other cool cmdlets from powergadgets. That stuff is gold... great job with the architecture Jeffrey, making PowerShell so extensible via C# is the best thing to have happened to the shell, ever.
So go grab PowerShell now, and check out the video!