It's as light as a feather and as snug as a glove, and it mounts your iPhone to a tripod or serves as a stand. It's the Glif for the iPhone 4/4S. I keep one in my shirt pocket when I'm out and about. I use the Glif for making movies as well as watching them. For $20, it will kick-start your photography with your new iPhone.
Find great deals at the TDS Photography Store on Amazon.