I'm just wondering if there's list anywhere of certain features that are only available on certain devices. I know multi-tasking is specific to certain devices, but wondering what others there are? I noticed that the notes app on my iPod Touch 5th Gen didn't have the drawing feature which I thought was a bit odd, but not sure if it's even meant to be on the iTouch or not. So far I can't find anything about which features are on which devices.
Device Specific Features for iOS 9
Did you check for release notes yet? Those may contain details about certain devices, etc.
Yeah I had a look through the release notes and couldn't see anything about that specific feature for notes, or any other mention of features which are specific to certain devices.