True, but the instruction to developers was already there. It just took them a while to get their heads around it. And no, third-party apps could not run in th

True, but the instruction to developers was already there. It just took them a while to get their heads around it. And no, third-party apps could not run in the background in iOS 2, indeed. That's why a lot of people still jailbroke (Cydia etc)