title: How to make Smooth Freehand drawing in ios?
body: <p>I followed <a href="http://mobile.tutsplus.com/tutorials/iphone/ios-sdk_freehand-drawing/" rel="nofollow">THIS</a> tutorial and i have two problems:</p>
  
  <ol>
  <li>How to change the color of line when we are drawing it (not when drawing finished)?</li>
  <li>How to round the ends of lines?</li>
  </ol>