The shot above is maybe not the most convincing example, but it’s reasonably sharp and has acceptable dynamic range. Not bad. I’d say the camera alone is worth upgrade from my 3GS, especially since the screen on that phone shattered when I dropped it on the pavement.
While I’m on the subject: One thing I don’t care for with the 4S: this stupid Siri. Maybe it’s something in my particular voice, but I can’t get Siri to do anything useful. I say, “What’s the weather look like, Siri?” or “Where can I buy some adult diapers?” the way they do on the commercials, and Siri usually comes back with something like “How should I know?” I did get her to send an e-mail once, but it took about as long as it would to manually type the damned thing. So I guess the jury’s still out on that one.