A situation came up two days ago, where because I had an Android phone, I was able to help a friend of mine whereas if I were using an iPhone, I would not have. While I was at her house, she was in need of a Windows 7 image so she could reinstall it on her laptop. Her home internet is horribly slow, so it would have literally taken several hours to download the 3.8gb Windows image from Microsoft. Since I have unlimited internet on my phone, I downloaded the image straight to my phone. From there, I just connected to her computer and copied the image file over to the thumb drive that was attached to her computer. With that, I was able to complete the OS installation for her. Had I been using an iPhone, I would not have been able to do that, and she'd just have been stuck.
Granted, this type of scenario doesn't come up often, but it's definitely nice to have a device that's capable of handling that type of situation when it does come up. After all, a smartphone SHOULD have smart capabilities (in my opinion).