There seems to be some confusion out there about the iPhone and multitasking, no doubt fueled by the way Apple handled -- and is still handling -- all things iPhone. Just to be clear, the iPhone multitasks quite well, thank you very much.
While listening to music, you can receive a phone call, take the call, jump into Safari, Google for an image, save the image to your camera roll, jump into Photos, choose the image, hit the "+" and choose to email the image, fill in and send the email, etc. and when the call is over, your music will fade seamlessly back in.
Steve Jobs showed a simpler version of that when he first introduced the iPhone back at Macworld 2007. Even today, you can begin a new iTunes 3G music download, jump into a Twitter app, tweet a response, and jump back to iTunes and see your download still progressing.
So from where does this confusion come?