title: Should I use a low-level or high-level protocol for an instant-messenger?
body: <p>I'm currently planning an Android-instant-messenger/<strong>realtime-chat</strong>, but i'm not quite sure, if I should use either a <strong>low-level</strong> (e.g. <strong>TCP</strong>) or a <strong>high-level</strong> protocol (e.g. <strong>XMPP</strong>).</p>
  
  <p>Thanks a lot.</p>