I have all kinds of questions about how they choose which information is most important about a user's geography, such as showing trains schedules when in the station. Did they take all of their Google Places categories and analyze which apps where being used more in what types of places? How do they decide where you are at in a city, where locations are all stacked on top of each other? I hope they open this up so we can add in relevant streams, mostly public safety info. p.s. I would love to work on these problems. City data is super interesting to me.