The powerful evolution of hardware, software and data connectivity of mobile devices (such as smartphones and tablets) stimulates people to publish and share their personal data (like social network information or sensor readings) independently of spatial and temporal constraints. To do this, the development of an efficient semantic web collaborative editor for mobile devices is needed. However, collaboratively editing a shared semantic web document in real-time through ad-hoc peer-to-peer mobile networks requires increasing amounts of computation, data storage and network communication. In this paper, we propose a new cloud service-based model that allows a real-time co-authoring of Linked-Data (LD) as a RDF (Resource Description Framework) graph using mobile devices. Our model is built upon two layers: (i) cloning engine that enables users to clone their mobile devices in the cloud to delegate the overload of collaborative tasks and provides peer-to-peer networks where users can create ad-hoc groups; (ii) Collaborative engine that allows updating freely and concurrently a shared RDF graph in peer-to-peer fashion without requiring a central server. This work represents a step forward toward a practical and flexible co-authoring environment for LD.