title: iPhone Curl Left and Curl Right transitions
body: <p>I am looking for a way to do a <code>UIViewAnimationTransitionCurlUp</code> or <code>UIViewAnimationTransitionCurlDown</code> transition on the iPhone but instead of top to bottom, do it from the left to right (or top/bottom in landscape mode). I've seen this asked aroud the internet a few times but none sems to get an answer. However I feel this is doable.</p>
  
  <p>I have tried changing the View's transform and the view.layer's transform but that didn't affect the transition. Since the transition changes when the device changes orientation I presume there is a way to fool the device to use the landscape transition in portrait mode and vice versa?</p>