From Walter Isaacson’s biography of Steve Jobs: >He didn't want outsiders to create applications for the iPhone that could mess it up, infect it with viruses,

From Walter Isaacson’s biography of Steve Jobs: >He didn't want outsiders to create applications for the iPhone that could mess it up, infect it with viruses, or pollute its integrity http://www.theverge.com/2013/7/10/4507930/the-revolution-will-be-downloaded-the-app-store-turns-5 http://www.theverge.com/2013/7/10/4507930/the-revolution-wil...