iOS 7 app icon size and graphics needs, which iPhone/ iPad apps do to support iOS7

Things iPhone and iPad apps for iOS7

• Update the app icon

  In iOS 7, app icons for high-resolution iPhone and iPod touch are 120 x 120 pixels; for high-resolution iPad, app icons are 152 x 152 pixels.
  Note:
  iOS 7 doesn’t apply shine or a drop shadow to the app icon. iOS 7 still applies a mask to make app icon corners rounded, it uses a different corner radius than earlier versions of iOS.

• Update the launch image to include the status bar area if it doesn’t do for existing apps.
• Support Retina display and iPhone 5 in all your artwork and designs, if you’re not doing so for existing or new app.