The smart thing about the phone is that even dumb people can use them and utilize them to look smarter.
For example: you are at a party and a group is talking about how much they like the old european artists.
You don't know anything about that, but if you sit there silently they might think you are not smart.
So you grab your phone and just google it. Check wikipedia or a more reliable source, and then tell people about your knowledge of the discussed topic.