All those things are cool, but compare with airplanes, which made the world drastically smaller. Or with the Haber-Bosch process, which prevents us from starving. That's the kind of big breakthrough technology that Thiel is talking about. The iPhone, while really neat, doesn't quite measure up.
One of my history professors in college said something I found quite remarkable. Let me share it ... he said in the history of humanity, there have been very few revolutions. When humans figured out how to talk was one. You can suddenly communicate with others! The other big revolution was when people learned to write. Now, you ideas can span space or time. The advent of computers, telecommunications and the Internet was another such revolution. You can now instantly connect with anyone around the planet! While the iPhone can't take the credit for all this, perhaps you see why I disagree with Thiel :)