title: passing a file to another Iphone application
body: <p>Is anyone aware of any sample or open-source code that does this?  Or a write-up explaining how to do it?</p>
  
  <p>Apple has quite a bit of sample code that opens web addresses in other apps.  But I can't find any examples where the app asks another app to open a file that is stored on the phone.</p>
  
  <p>Thanks.</p>