In networks built from proprietary and specialized equipment and software, can we really achieve the touted benefits of applying open source? One year has passed since the experiment called OPNFV was launched as act of faith by a brave few who wanted to accelerate true interoperability, by developing an open and flexible development reference platform to address NFV. In this year we have wrestled with many issues on both the development and business front, as we balance CSP expectations vs CSP realities, cooperation vs differentiation, and try to harness the chaotic open source development model to deliver useful software in a timely manner. This talk will provide an overview of the challenges we faced, our learnings and achievements.