title: How do I start another application (downloaded or preinstalled) from an activity?
body: <p>Basically, I want to get a list of all installed apps and pick one to run from an activity.</p>
  
  <p>I've tried ACTION_PICK with Intents but that seems to leave out apps that were downloaded and it has a bunch of junk in it.</p>
  
  <p>Thanks</p>