I also hav the problem of some aps crashing on launch if launched in portrait. There are also some aps that do not correctly load with the portrait flag enabled. For example: SomePlayer will launch fine, but the UI is the landscape UI shoved into the portrait space rather than launching with the portrait UI. To get it to right i have to close the ap, rotate desktop to landscape, then launch, then rotate to portrait. Same with a couple other aps.