The iPad Pro would presumably sport a larger screen (some are saying 12 to 13 inches), but what's the point of a larger canvas if switching tasks is a chore? I don't want a big thumbnail when I minimize an app. Apple needs to tweak iOS 7 for larger screens so that it's easier to close apps and shuffle between them. Think Mission Control on the Mac but cleaner — and with the option to tap an "X" next to an app or swipe it off the screen to close it.
At the same time, the iPad Pro should let you run two apps at once on the screen. (Four on the Galaxy Note Pro is just overkill.) But unlike on Samsung's TouchWiz software, you wouldn't need to open a special menu and then drag multiple apps on the screen. There should be contextual intelligence built in. So, if I'm looking at an email with a meeting invite and click the date (using Apple's data detector tech), pressing the Create Event option should automatically open the Calendar app on the right side of the screen.