I cannot get setOrientation (page 179) to work. An alert indicates that UIDevice may not respond to it and it does not "auto-complete" / display when entered.

I finally realized, though the book fails to mention it, that after adding the code on page 179:

-(IBAction) btnClicked: (id) sender {
[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeLeft];
}

one DOES NEED to connect the button to the "File's Owner" item!