iOS Project demonstrating how to swap a storyboard during interface rotation.
This demo makes use of detecting device rotation via size classes as explained here:
Storyboards can be loaded on a per ViewController basis. The only peculiraity is the first launch scenario: to make sure the correct storyboard for the rotation after launch is used, we need the additional code in AppDelegate.
It's currently iPad only - I may add iPhone screen sizes when I find the time.
For yash. Hope this helps :-)