I've just upgraded to iOS 5 GM seed and XCode 4.2. I also upgraded the iOS SDK for ArcGIS Server from 2.0 to 2.01. When I build (with iOS 5 as the base SDK) and run my app in the iPhone 5 simulator, the map service never displays. It still works fine in the iPhone 4.3 simulator. The base SDK at both the project and target levels is set to iOS 5; the deployment target is set to iOS 4.2. Would this be a problem with the simulator?