The document introduces OPEN-O, an open source project hosted by the Linux Foundation that aims to provide an orchestration platform for network services across SDN, NFV, and traditional networks. It outlines OPEN-O's vision of providing end-to-end connectivity services tailored for operators through a modular framework that supports both new and legacy infrastructure. The document also provides details on OPEN-O's architecture, initial use case focusing on vCPE, current project status with over 100 developers, and the Linux Foundation's role in providing neutral governance.