title: Is the Facebook app built using a mobile development framework like PhoneGap or Appcelerator?
body: <p>I've found <a href="http://venturebeat.com/2011/07/08/hybrid-mobile-apps-take-off-as-html5-vs-native-debate-continues/" rel="nofollow">numerous</a> <a href="http://blog.brightcove.com/en/2011/11/html5-and-rise-hybrid-apps" rel="nofollow">sources</a> that cite the Facebook app as an example of a Hybrid App.</p>
  
  <p>I understand the term Hybrid App is broadly defined as any smartphone app that wraps a WebView in a native application.</p>
  
  <p>There are mobile phone <a href="http://en.wikipedia.org/wiki/Multiple_phone_web-based_application_framework" rel="nofollow">development frameworks</a> (PhoneGap,  Appcelerator, etc) that enable developers to build apps using their existing web dev skills (HTML5, Javascript, CSS) while providing access to core phone features (camera, address book, etc).</p>
  
  <p>Therefore, since Facebook is a hybrid app that accesses the phone's core features like Push Notifications and camera I'm curious:</p>
  
  <p>Is the Facebook app built using a mobile development framework?</p>