PowenKo > iOS > UI > Layout > Simple iOS 5 UI Design Tutorial Using Storyboard in XCode 4
http://kurrytran.blogspot.com/2011/07/simple-ios-5-tutorial-using-storyboard.html
iOS, Android, Unity3D Education blog,
http://kurrytran.blogspot.com/2011/07/simple-ios-5-tutorial-using-storyboard.html