PowerShell Scripting Tool

I've read a lot about Power Shell, a new (Free) scripting tool from Microsoft:

Here's a blog on MSDN about it:
http://blogs.msdn.com/powershell/

And here are the links to download it:
http://support.microsoft.com/kb/926139

Here's the download documentation:
http://www.microsoft.com/downloads/details.aspx?FamilyId=B4720B00-9A66-430F-BD56-EC48BFCA154F&displaylang=en