why not? ios has the most/best music applications and is the only mobile os to properly support midi.
When I had an iPhone, I didn't really use it for music, so I couldn't really comment on how good they are for making it. And, as I've never owned an android, or even used one for longer than it takes for me to change a friends background to a picture of a penis, I haven't had very much interaction with music software on android therefore, it would be stupid of me to put one higher than the other.
now now now, don't take my statement the wrong way. i have nothing against apple products or iPhones (I work at an Apple store). Simply, I come in contact with so many users who are in so far over their heads and expect me to be able to solve all their problems in 1 minute. And of course, it's always the phone's fault. Granted I DO see a lot of issues with the product itself. However, that's basically a risk you assume when buying anything.
So in summary, the general iPhone user population grinds my gears. Someone who knows what they're doing and doing something cool with it? Inspiring.
Nah man, I didn't think you where making an attack against iPhones or their users, I just wanted to know whet your reasons where dude.