If you’ve just installed Xcode 5, there’s at least one thing you’ll need to attend to, to develop from Delphi XE5 (it is also possible to use XE4; check here)
Xcode 5 is a completely new install; in other words, anything else you had before, such as the Command Line Tools and extra simulators, are gone. To remedy this, in Xcode 5 open the Preferences window, and select the download tab:
When you start debugging an iOS app from Delphi, you’ll notice that the version of the simulator that starts (at least in my case) is the iOS7 4 inch retina simulator. If you want to test against the iOS6.1 simulator, you’ll need to go to the Hardware menu of the simulator, and select Device, iPhone, iOS 6.1:
This will stop debugging in Delphi, however if you start debugging again, you’ll note that it uses the last selected simulator. NOTE: Selecting iOS 6.1 in one of the retina options still results in the iOS 7 simulator starting up.
If anyone knows of another, perhaps more correct way of making Delphi use the correct simulator, please let me know.