title: What was the last (if any) Xcode shipped with iOS Simulator 3.0 and supporting iOS 4.2.1?
body: <p>I currently have an iPod Touch 2G model MC, running iOS 4.2.1 which cannot be downgraded AFAIK, but I need to build an iOS 3.0 app</p>
  
  <p>So, it would help to have an Xcode with both an iOS 4.2.1 compatible SDK and iOS Simulator 3.0 too</p>
  
  <p>Any help is appreciated</p>