At the Open Technology Institute (OTI), we've been working on opening our user feedback process as a way to improve our internal processes and collaboration, engage our user community more, promote non-developer contributions, and think more broadly about how open source process plays a role in the Commotion Wireless project, a free and open-source communication tool that uses mobile phones, computers, and other wireless devices to create decentralized mesh networks.
More on that in my previous article.
In this article, I've expanded on the five tips I've identified for leveraging user-centered design in your open source project.