Remove UIStatusBar in your iPhone Application
Have you ever wondered how to build your iPhone Application full screen? Well here's a quick tips on what to do to make it happen.
In your applicationDidFinishLaunching use this code:
[[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO];
or if you prefer you can change in your Info.plist set UIStatusBarHidden to true.
Don't forget if you use background image make sure you set the right size in your .xib file