To coincide with the Professional Developer's Conference in Los Angeles, Microsoft is going to be shipping a new updated version of MSH. Major new features from Beta 1 include COM Interoperability (which means you can now interact with COM directly from the command line!) plus support for script signing. More details will be available on Monday.
I've been playing with this new version for a few days and it's great, although I've not done too much with COM interop yet. I will be posting new scripts up to http://www.reskit.net/monad/samplescripts.htm page.