Someone has compiled a list of the 25 Most Active Projects in CodePlex. PowerShell has 2 entries in that list.
PowerShell Community Extensions – provides a widely useful set of additional cmdlets, providers, aliases, filters, functions and scripts for Windows PowerShell that members of the community have expressed interest in but didn’t make it into PowerShell v1.0. Examples of these cmdlets are Get-Clipboard, Out-Clipboard, Get-Hash, Get-ShortPath, Set-FileTime, New-SymLink, Format-Hex, Format-Xml, Test-Xml, Test-Assembly, Ping-Host, etc.
PoshConsole – a more modern PowerShell Console.
You can get a complete list of PowerShell Shared Source projects HERE. Do yourself a favor and check these out and contribute where you can. Contributions can take the form of Code, Documentation, Suggestions, Bug postings, Discussions, etc. Shells, Scripts, Automation etc have always been and will always be community driven efforts. Microsoft can do our part by providing the core tools – the language, the shell, the runtime, the core cmdlets and providers but at the end of the day, you are going to have to leverage the community to get the maximal power out of PowerShell.
These are some great efforts to engage in so what are you waiting for?
Jeffrey Snover [MSFT]
Windows Management Partner Architect
Visit the Windows PowerShell Team blog at: http://blogs.msdn.com/PowerShell
Visit the Windows PowerShell ScriptCenter at: http://www.microsoft.com/technet/scriptcenter/hubs/msh.mspx