What's that guy at the coffee shop typing into his computer? These days you may actually be able to find out. If he's using Twitter or FourSquare, nearby messages can be called up using the APIs. The new Geosay mashup does exactly this, showing tweets and tips near your location--or any location you request.
In this post I'll describe how we planned, built and tested a truly real-time location-based game with Socket.io, Redis, Node.js, and what we learned along the way. Over the past few months, we've spent the majority our free time building a real-time game as a test for our location platform, Geoloqi. We call the game MapAttack! due to its map-based nature. Two teams compete to capture the most points on the gameboard. The gameboard, in this case, is the city streets of the neighborhood the players are in.