Exciting Keynote for iOS update

If you've ever tried prototyping app screen designs using Keynote for iOS, then you'll understand why the highlighted feature is so exciting.

Prior to this update, Keynote for iOS would only play slide decks in landscape orientation. For traditional users of Keynote, this seemed like a logical restriction, but for app prototyping, it was quite the impediment. To get around this, you had to rotate all your slides 90° to simulate how they would appear in portrait orientation.