title: What can be used of HTML5 today?
body: <p>What are the features of HTML5 that can be reliably used today?</p>
  
  <p>Microsoft has some <a href="http://blogs.msdn.com/b/giorgio/archive/2010/12/17/pirates-love-daisies-html5-lessons-learned.aspx" rel="nofollow noreferrer">cool HTML5 demos</a>, but what part of it is classic EEE and what is them catching up?</p>
  
  <p>Example of useful feature I found on SO: <a href="https://stackoverflow.com/questions/3849758/how-does-facebook-rewrite-the-source-url-of-a-page-in-the-browser-address-bar">pushState</a>.</p>
  
  <p>Please give more thought than a page with comprehensive lists of tags and attributes of HTML5.<br>
  @Jan Zyka's <a href="http://slides.html5rocks.com" rel="nofollow noreferrer">http://slides.html5rocks.com</a> answer is a great example. (Thank you!)</p>
  
  <p>What are you actually using in production code today?</p>