title: Xcode setup for joint Mac & iPhone apps that share a model
body: <p>I'm working on a Core Data application.  I'd like to create interfaces on both the Mac and on iPhone, with both sharing the same model code.</p>
  
  <p>Is it possible to set up an Xcode project to have both OS X (x86_64 10.6) and iPhone targets?  Or is there a better way to do this?</p>