title: Find all device inside the range in iBEACON and share contact with each other
body: <p>I want to develop the application which will list me all the device which are in range.</p>
  
  <p>And any of the devices in range should share the contact in the list.</p>
  
  <p>I <a href="https://github.com/Estimote/iOS-SDK" rel="nofollow">found one demo</a> which will locate the nearby users.  But how do I get notified and get the contact list of each other?</p>