I'm not arguing that the feature wouldn't be used at all, just that I believe I'm fairly typical in not using clever phone features. It'd be used by a small number of people but that wouldn't make a noticeable change in marketshare if Android had it and iOS didn't.

To be honest, there probably isn't any feature of a phone OS would make a difference these days. People have decided which camp they're in and they're not going to change.