Anthony DeanListening to a podcast discuss what they view as the most important Apple products ever. Pretty sure #1 should be either the original Macintosh (popularizing the desktop GUI, mice, etc.) or the iPhone (the first popular modern smartphone; it and Android phones = smartphones changing society).
Yes, there were smartphones before the iPhone, such as the Blackberry (which Obama loved), but they didn't really have the impact among the general public/society like the iPhone did.