BlackBerry Torch 9800
After upgrading the App World application on a Blackerry 9800 I noticed the icon was no longer visible after the phone restarted. A search on the Blackberry Knowledge Base led to KB29422 titled ‘BlackBerry App World icon is missing after upgrading to BlackBerry App World 4.0.0.63 to 4.0.0.65′.
Paul Hartigan's Blog 