WebCommander is a framework to wrap around your Powershell and / or PowerCLI scripts to give it an easy to use web interface.
Wrapping a program as a web service means using a web portal to gather parameters and then passing them to the wrapped program. By doing so, details on how the program is developed and what underlying system it depends on become transparent to others. People could make easy use of the program via browser manually or through any programming language that supports calling web services.
End users usually run many repeatable routines which could be automated by PowerCLI. WebCommander makes it even easier by providing a more user friendly UI and result report. Users have no need to setup their own environment to use PowerCLI, keep upgrading it, download and learn scripts written by others.
Started as a VMware fling this is now OpenSource and I guess usefull not only to people using PowerCLI.