I had a demo of the iPhone at a local AT&T store tonight. First, I noticed that the speed of loading a web page even on a high powered local network was not satisfactory. As the salesman dazzled me with all the features (which I love), I noticed that the phone aspect of the iPhone was not being discussed. So I asked him to demo the audio quality of a phone call. He fumbled and stumbled, because AT&T had not had the foresight to make the audio quality of their network a feature of their demo. Here I was in a retail phone store! Has anyone had a chance to listen to phone calls? What do you think of the audio quality compared to other cell phones?