Open Source web analytics tool (piwik)

As you guys aware i am working on the web analytics industry, We are thinking to explore the open source web analytics tool “Piwik” . My first impression to the tool is awesome. Thanks to team for such a nice alternative for GA. It;s plug-in based architecture . So i am thinking to write a plug-in for the community and i am working on that..

will give some nice plug-in to piwik other than what i am working..