The beta of the next version of the PowerShell Community extensions has been released (see Nivot Ink - Pscx 1.2 Beta Released for more details). The code itself can be downloaded from: http://pscx.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=1615.
For me, the cool thing is that this is released as a module so I can import the module when I want it – or not. Nice touch. If you are using Win 7, note this beta requires Win 7 RC!