Siri will likely have a much larger impact on the future of technology than any other thing if it is indeed as efficient as it has been portrayed to be... but I'm not sure if the credit really belongs to Steve. The core tech was built else where, integrated with iOS by others, bought by Steve and added deeper into iOS by others. I'm a big Steve Jobs fan but this article might be "reaching" in it's premise. Feel free to correct me if I'm wrong.