The convergence and evolution of networks and services in Information and Communications Technologies is continuing to drive the need for flexible testing and experimentation environments that respond to a large and diverse set of requirements. The corresponding testbeds range from small dedicated and well-controlled environments up to large scale environments that should exhibit properties anticipated by the future network. The value generation has shifted from the network towards the applications and the networked society is calling for the service environments that will deliver the complex and valued services to the customer, yet a reliable service delivery depends on a reliable network. Open testbeds are becoming state of the art, allowing both wide access as a shared resource and extensibility to include on-demand new end systems, network technologies, protocol stacks, and, most importantly, new middleware and service delivery platforms for specific test purposes. Major research and development programs around the globe have started to develop and deploy large scale experimental facilities, including GENI in the U.S., FIRE in Europe, AKARI, CNGI, and others in Asia. Due to the escalating complexity, attention is increasingly being devoted to cross layer testbeds that can support experiments spanning the network, service delivery and application layers. These Testbeds and Experimental Facilities for the Future Internet will play a pivotal role towards the future network, thus TridentCom 2010 will devote significant attention to them. TridentCom 2010 will provide a forum to explore existing and planned testbed concepts, infrastructures and tools to address the research and business challenges in a world of global convergence.