title: Mobile app with low page load times and broad browser support.
body: <p>We want to build a mobile version of a popular classifieds site. Page load times must be minimal and have good mobile browser compatibility. We have an API that could potentially be used in an AJAX fashion. What would our best option (from experience) and why:</p>
  
  <ul>
  <li>HTML 5 app with ajax calls to the API for data.</li>
  <li>Plain HTML 4 site rendered server side.</li>
  <li>Full Javascript based app.</li>
  <li>??</li>
  </ul>
  
  <p>I've demoed several mobile framework, but they feel sluggish even on my iPhone 4. </p>