Our weekly iPhone 4-case roundup is back, and while the question on many people's minds is whether or not the white iPhone 4 really is thicker than the black one, the case manufacturers say they ...

Free bumper cases are available for currently iPhone 4 owners until August 22, 2010. The free bumper case program applies to all phones purchased before September 30, 2010.

ElementCase: The Formula 4 ($60) is a case made of strong, black polycarbonate combined with an aerospace-grade, carbon-fiber backplate that provides additional protection to keep your iPhone safe.

The Gel case sells for $14.99 and is made to feel and look like silicone with the protection of a hard shell case. It comes in black, blue, pink, and clear for $14.99.

If you’d asked me before today what a bumper is, I would’ve said a part of a car—but according to Apple, a bumper is now an iPhone 4 case which comes in six colors. We’re talking white ...

We solicited cases from most of the major players and experienced a near-full array of what's available for the iPhone 4. Some cases really impressed us. Others came across as more or less standard.