I don't think there is anything new in the game. I think most of the original hype has been driven by IP and marketing. The tech is pretty straight forward. But its become big enough that its got its own critical mass and has become its own cultural phenomenon. And that's exciting, even if it turns out to be short lived. Tonnes of people are trying the game out based purely on the hype, and encountering 'GPS based finding' and Augmented Reality for the first time. So even though this game is not the first to do either of those things, its the first to push them out of niche nerd spot and into the public awareness.