title: How to run app in older version of Simulator
body: <p>I would like to know how it is possible to run an iPhone app in previous versions of the iPhone simulator.</p>
  
  <p>I have Mountain Lion, and the lateset xcode 4.5 and latest monotouch and monodevelop. </p>
  
  <p>I have tried to download older xcode and iOS 5.1 sdk, but not sure how to get monodevelop to run the app inside of the older simulator.</p>
  
  <p>Thank you</p>