rackspace/rackspace-ios — pull request #36 by gherlein (2012-11-16 14:26:06+00:00)
Title: replaced deprecated method to add split view controller

-[self.window addSubview:splitViewController.view];
+[window setRootViewController:splitViewController];

http://stackoverflow.com/questions/12544608/splitviewcontroller-not-working-correctly-in-ios-6

If you launch in portrait you still get the same full screen behavior. However, rotating will fix it, and then it works right in both orientations. This is an Apple bug. We can describe this in the release notes and be fine.