There has been talk in the community about trying to come up with a CPAN for PowerShell. This is not it, but it's a start. For one thing, CPAN grew enough that they could enforce readability and technique requirements by having someone actually review each module. PowerShell is still too young for that.
I decided to post my SMS.psm1 module for making command-line managment of SMS easier, so here goes nothing. I'll do a post on how to use it later.
Note: You need PowerShell v2 CTP2 in order to use this. Copy it into %userprofile%\Documents\WindowsPowerShell\Packages\SMS\.