If you’re looking for a good set of prebuilt functions with which to extend your PowerShell v2 ISE environment, check out this excellent collection of PowerShell file, function, and module functions by Josh Einstein. It includes:

Open-File (opens a file in the ISE editor)
Open-Profile (opens your profile(s) in the ISE editor)
Open-Module
Open-Function
Close-File

http://einsteintech.spaces.live.com/Blog/cns!89E05724AF67A39E!724.entry?wa=wsignin1.0&sa=177582322