Since I upgraded to iOS5, the app store won't tell me what specific apps I need to update. It won't have any apps listed when I click on update in the app store. But it will tell me the # apps I need to update. Anyone else have this problem?
When you go to the App Store app on your phone/iPad it will tell you how many apps that are currently installed that have available updates.
When you go to iTunes on your desktop, it will tell you how many apps you own that have available updates. I regularly have 17 apps with updates available - in iTunes. But none of them are installed on my iPhone so I won't get the notification there.