The Civil Engineering nerd in me likes this.
I've read a little about cloud computing, but this hits close to home. Using cloud computing cities like Seattle and New York are able to navigate through massive amounts of real time data about their cities, roads, underground piping, building information including each of their energy systems. With this information engineers, city mangers and political leaders are able to visualize traffic management solutions, sustainability options and growth impacts among many other possibilities. This network of information is going to be pretty wild in 10-20 years after increased computing power and growing input from cities and professionals. It looks pretty cool now.