“The Windows PowerShell Command Builder for Microsoft SharePoint 2010 Products and Microsoft Office 365 is a Silverlight 4 application that is designed to help IT professionals and power users learn how to use Windows PowerShell for administrative tasks.”
This tool is great, it was always a challenge to remember all the SharePoint 2010 PowerShell Verbs and Nouns, and not to mention command arguments. Now with this tool we can easily assemble our comment with all the required and optional parameters. Then copy it to clipboard and past in the SharePoint 2010 Management shell. For each command there is a link to the TechNet documentation on the bottom-right pane.
It is accessible online on the following link and there is a User Guide for download.
Personally for me, as a SharePoint PowerShell administration fan, this is a big time saver.