UITabBarController+CCAdditions.h

AppDelegate.m

#import "UITabBarController+CCAdditions.h"


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{    
    [tabBarController setBackgroundImage:[UIImage imageNamed:@"CustomTabBarBackground.png"]];
    [tabBarController.view setNeedsDisplay];
    return YES;
}

gistfile1.m

@interface UITabBarController (CCAdditions) 

- (void) setBackgroundImage:(UIImage *)image;

@end

UITabBarController+CCAdditions.m

#import "UITabBarController+CCAdditions.h"

@implementation UITabBarController (CCAdditions)

- (void) setBackgroundImage:(UIImage *)image 
{
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0,320,480)];
    imageView.backgroundColor = [UIColor colorWithPatternImage:i];  
    [[self view] addSubview:imageView];
    [[self view] sendSubviewToBack:imageView];
    [[self view] setOpaque:NO];
    [[self view] setBackgroundColor:[UIColor clearColor]];
    [imageView release];
}

@end

Nice, this is from my CCAdditions repo on GitHub

i believe it is yes https://github.com/jameswomack/CCAdditions