When was the last time you were standing and clapping really hard while watching the introduction of the next iOS? Mine was iOS 4. iOS is boring. Why is it boring? Because the UI looks the same. An average complainer would demand a major UI redesign. But why does it look the same? Because there is no way to change it. The only way I'd change iOS's home screen would be replacing it to look like Windows Phone. But Apple would never do that. Think about it. If you we're to change the home screen, how will you do it? If you think of anything that isn't a grid of icons, it would be hard to use. Apple's UI is already the perfect UI. And sadly, this might be the only UI we'll be seeing in a few hundred years.