Carrying the contents of a label from one view controller to another
@interface ViewControllerOne : UIViewController {
    IBOutlet UILabel *myLabelOne;
}

@property (nonatomic, retain) IBOutlet UILabel *myLabelOne;

@end


@interface ViewControllerTwo : UIViewController {
    IBOutlet UILabel *myLabelTwo;
}

// myLabelTwo doesnt need to be a property, it could just be an ivar.  Up to you.
@property (nonatomic, retain) IBOutlet UILabel *myLabelTwo;

@end

@implementation ViewControllerTwo

- (void)viewDidLoad {
    [super viewDidLoad];
    self.myLabelTwo.text = [(ViewControllerOne *)self.navigationController.presentingViewController myLabelOne].text;
}


@end