Clearly Apple is separating iphone and ipad OSes which is great, but I wonder why they didn't rename iOS to iPhoneOS? That is how it was originally called anyway. It would have been great if they called it that - it would make more sense as people do not know what iOS is, but would know iPhoneOS. The new name would also nicely fit in line with the rest of the lineup - watchOS, tvOS, macOS etc.