When it comes to apps rotating to support the different orientations of the device, then there is definitely split opinion on what the default behavior should be. A lot of users seem to think that all iOS apps should seamlessly rotate to support the device being put into different positions, whereas a subset of iOS device owners are perfectly happy to work in portrait mode. While opinions may differ on the right way to do things with third-party apps, it seems that most users are perplexed about why certain native apps that ship with iOS don't offer any rotation support whatsoever.