I have an iPhone and I love it, even just for music, especially on the trains for sleeping. Not to mention, it's feels really comforting to be catching a ride with a creeper and someone calls you. Just makes me feel like it shows people someone's out there caring about me. I've found it to be a better deterrent than my blade, since I've had a couple of people test me to see if I can and would actually use it.
Not to mention camera, alarm clock, map functions, StP,weather, compass, and a flashlight app (I obviously have back ups but its nice to have all that handy in you pocket). Last but not least- Netflix muthafuckahhhh. It's the most wonderful luxury next to showers and brand spankin new socks.