title: iPhone: Downloading zip and extracting in main bundle subdirectory at runtime
body: <p>I want to extend my iPhone app that the app downloads a zip file into 
  a sub directory then extracts it and then load images which were inside the zip.</p>
  
  <p>Any ideas how to unzip in run-time and the access the images? Would be really happy for some idea.</p>
  
  <p>Greetings,</p>