title: How xamarin compiled to android?
body: <p>I want to know how xamarin c# is compiled to run on android.</p>
  
  <p>I read that it runs on mono.</p>
  
  <ol>
  <li><p>Since which version android run mono?</p></li>
  <li><p>how much is mono slower than running on dalvik when writing application with java?</p></li>
  <li><p>What is the advantage writting on c# than java?</p></li>
  </ol>