True, the OS does not know best, especially in the case of Android. But the user benefits a great deal from consistency of behavior across all apps. The bar fo

True, the OS does not know best, especially in the case of Android. But the user benefits a great deal from consistency of behavior across all apps. The bar for deviating from OS convention should be high, not only to preserve the user's sanity, but also because most users will tire of an app's design innovations, however brilliant, if those innovations impose a learning curve. Most users are not that dedicated to a piece of software.