title: offline HTML5 or native SDK for cross-platform app development or JQUERY mobile
body: <p>I am planning to build an app for selecting things from a menu and manipulating with it. I was earlier thinking of learning java and build on android, but then I came across HTML5 and JQuery mobile.</p>
  
  <p>Can anybody guide me what should I start learning? I am planning to build a simple app. I just want a good GUI and want to write once. That's why I thought I'll work on HTML5 and then store it locally and open it in webview component of different platforms. So I will write once and use it on all platforms.</p>
  
  <p>Am I going in the right direction?<br>
  Also tell me the difference between HTML5, JQuery and Phonegap</p>