PowerShell 3.0 Community Technology Preview
Microsoft released the Community Technology Preview (CTP) of the Windows Management Framework 3.0, which includes PowerShell v3. This can be installed on Windows 7 SP1 and Server 2008 R2 SP1. This is a pre-release version to allow the IT community to review the software and provide feedback.
Windows PowerShell Customer Connection
Microsoft Connect is where bug reports and feature requests should be submitted.