When Apple implemented copy and paste it got a huge amount of coverage, but I didn’t care all that much. I’ve always felt that on such a small device, apps should behave in such a way that copy and paste isn’t needed. I probably use copy and paste about once every three months.
Similarly, there’s a lot of excitement now about multitasking. And similarly, I don’t find myself caring all that much. On such a small device I don’t feel any great need for my apps to multitask, and I’m happy so long as they maintain their state when appropriate and utilise push notifications to keep me informed when the app isn’t running.