title: Customizing icon position and title of UITabBarItem's (iphone sdk)
body: <p>I have a tabBar, and I want to customise the items in the tab bar.  I want to prevent the display of the title (easily achieved by setting the title to nil), and reset the icon position to be in the central vertical position.  Does anyone have any idea of how this can be done?</p>
  
  <p>Thanks.</p>