title: Play default iOS system sound with Monotouch
body: <p>I want to play the keyboard 'click' sound when pressing buttons in my app.
  How do I access this sound clip with Monotouch? I don't want to pass my own sound using AudioToolbox SystemSound.FromFile(). So far all my searches have led to this solution or Objective-C code using 'AudioServicesCreateSystemSoundID' which I'm having trouble translating to C#.</p>