You can set a message like “!Gather 7pm at 1st and Main” or “@press please don’t photo faces” or “#Legal Aid is 2125551212″, or even just motivational messages “#staycalm #noviolence” or “#theworldiswatching”. If people like what you have written, they can change their status that message, and rebroadcast another 30 feet in whatever direction they are headed. Again, it is basically Twitter combined with doing “the wave” at a football game, except the wave is powered by these little super computers radio stations we have in our pockets.