I did, in both the still camera and the video mode, and was very pleasantly impressed. If someone could tell me how to post photos here, I would show a couple.
I was rather pleased I snapped this one with my iPhone!
Here's a link to the last minute or so of the Lenox Mall fireworks in Atlanta. (supposedly the biggest show in the SE).
I was pleasantly surprised with the video as well as audio. (You can hear the drunk shouting behind me quite clearly)
http://www.youtube.com/watch?v=XscPe8deMjE