I haven't done a lot of research on the subject but I did encounter one annoying thing with regards to the iPhone. I have an iPod hook up to my Alpine headunit in the car and it won't charge my iPhone. For that reason it's good that I have an iPod that is separate for music. Maybe there are updated cables, I don't know, nor do I care to look as it gives my iPod a purpose. I got the iPhone because it's the best cell phone to me. Keep in mind too that I hate Apple computers, but they do MP3 players and cell phones really well.