There are somre pretty crazy applications that are very useful and some that just appear to be useful. According to the the site below, they've built an application that can help you visualize exactly where the radio waves are. While this may indeed be a bit far-fetched, radio waves are pretty static and I could see this as possible. Take a look at the video at the link below.
The infosphere* relies on an intricate network of signals, wired and wireless, that support it. We are completely surrounded by an invisible system of data cables and radio signals from access points, cell towers and overhead satellites. Our digital lives depend on these very physical systems for communication, observation and navigation.