title: Adding Older iOS SDKs to Xcode 4.1 in Lion
body: <p>I just installed Lion and Xcode 4.1. How do I add older SDKs so I can build and run in 4.1 or 4.2 in iPhone/iPad Simulator? Xcode 4.1 only comes with the iOS 4.3 SDK. </p>
  
  <p>Does Lion have some sort of minimum SDK for builds?</p>
  
  <p>Thanks,</p>