It's probably safe to say Annie Leibovitz doesn't use the iPhone camera for Vogue photo shoots. The iPhone's camera is incredibly basic and comes with plenty of flaws, but use it right and it can make you organized and on-the-ball.
If you're looking to use it for more than remembering where you parked and goofy pics, invest in a few inexpensive apps to improve its functionality and enhance your pics. There are hundreds of choices available at the iTunes store, but here is a handful that you simply must have. Who can say no to improved pics for less than $10? Certainly not me!