title: how to synchronize display of multiple android devices?
body: <p>I was thinking of using multiple Android devices (e.g. Nexus 7 tablets) to build a photo / video wall and I'm wondering a) whether it is possible and b) how to synchronize the display of all these devices. Google showed off its <a href="http://www.chromeexperiments.com/detail/racer/" rel="nofollow">Chrome racer</a> experiment so clearly it is possible to synchronize displays across many devices. </p>
  
  <p>So here are my questions:</p>
  
  <ul>
  <li>what technology should I use to synchronize the displays? Android? Chrome? Please point me to existing code if possible.</li>
  <li>what's the minimum lag between devices that could be achieved in such a setup?</li>
  <li>can video and sound playback also be started simultaneously on multiple devices (think video wall)?</li>
  <li>what kind of architecture should be considered for such a project? Centralized server that sends out commands? Should devices talk to each other?</li>
  </ul>
  
  <p>I'm very curious about suggestions!</p>
  
  <p><strong>EDIT:</strong>
  <a href="https://play.google.com/store/apps/details?id=org.cbase.blinkendroid" rel="nofollow">blinkendroid</a> is the only app I've found so far that might do the job. Pros? Cons? Alternatives?</p>