title: Wi-fi P2P. Inform all peers available of some event
body: <p>The problem: I'm making an offline-multiplayer android game, where people can create or join a room and play together via Wi-fi. Consider the situation when a user creates a room and he (of course) has to inform all other users that there is a room available. So the question is "How?".I've read about 1000 times <a href="http://developer.android.com/guide/topics/connectivity/wifip2p.html" rel="noreferrer">this</a> 
   and <a href="http://developer.android.com/training/connect-devices-wirelessly/wifi-direct.html" rel="noreferrer">this</a>.
   It's written there that in order to send some data to another device, one of them should be a server and the other one a client. Client sends some info to the server, server accepts it. So, does it mean that I have to make all "players" servers and the "room creator" should become a client? This sounds crazy. Please help, may be I'm reading the wrong docs? </p>