title: How to use Android SDK add-on's?
body: <ol>
  <li><p>Can anyone share some details for developing new SDK add-on like the one Google map API? I do not find any details on how to build new SDK add-on?</p></li>
  <li><p>Is that good approach to have SDK add-on for connecting to twitter, Facebook, YouTube applications? I mean the library would contain the methods to access the developer APIs supported by the social networking apps. I am looking out some ideas for developing new SDK add-on.</p></li>
  <li><p>Let's assume I have added new service API in the android core framework. Now can I build a SDK add-on in order to access that service? (This add-on library would have simpler API calls that would in turn available the service from android core service)</p></li>
  </ol>