If you're wondering what Jony Ive used to design iOS 7, you might not have to look further than Microsoft Word.
Designer Vaclav Krejci goes to crazy lengths in this video, pushing Microsoft Word to limits I never thought you could, practically rebuilding iOS 7 from scratch from the word processor. Okay, so Apple didn't use Word when designing iOS 7, but Krejci shows that it would have been possible if they really wanted to—the pieces were all there waiting in software you just used to type up your midterm exams. The video goes on for about nine minutes but it's sped up significantly, so it probably took Krejci a little while to actually put all of it together. Now, not everything is recreated perfectly, but it's damn near close enough to give this guy some props.