"The Center", a real ghost town

Imagine building a real city where no-one will ever live, because you want a playground to test out new ideas and new technologies. It's exactly what Pegasus is planning in New Mexico, according to the website of Fastcompany. It's going to be a real, 20 square mile, city for 350.000 virtual inhabitants and we are talking a (mere) 200 million $ budget. Building is supposed to commence in 2014, if and when the project continues, which is not at all sure today. This would certainly mean taking the definition of 'playground' to a new level.