We've explored the boundaries of modern media on smartphones. You can now brainstorm on the uses and take advantage of QR codes, find out where the user is, monitor the user's position, get directions and maps from Google, and feed responsive videos to the user.
Think about all you have just learned. How hard would it be to create a socially connected website that would allow users to get maps to each other's positions that continue to update as they move closer or further apart. It could be valuable if packaged and marketed properly.
In the next chapter, we're going to leverage GPS to pull tweets within your geographic area. We'll also look at pulling feeds from several other sources such as reddit, RSS feeds, and suchlike. It's going to be a lot of fun. It was one of my favorite chapters to write.