That's a promotional video by the makers of this quite impressive project.
If you want to read up on New Sondgo, start with the Wikipedia article. A good follow up is Dan's impressions of his visit there and a more information technology article is up at fastcompany.
Another aspect of New Songdo City that is particularly interesting is that it is one of the first genuine examples of what they call the "ubiquitous city" i.e. ubiquitous connectivity between (in theory) all objects and actors in the city, from lamp posts to park benches to cars to buildings. ICT is spoken of as the "fourth utility" in this city, and developers Gale are particularly close to Cisco, with a framework for "Intelligent Urbanisation" signed with NSIC and Cisco. (Note also Autodesk's digital model of the city.)
What I find interesting is that it doesn't yet seem to have changed the form of the city. And I think it should, as urban informatics can attempt to engage with the architecture and urban form directly. Personally, I do believe there ubiquitous real-time networked connectivity will have some direct physical impact on urban space and form, and we're working hard to figure that out.