iPhone 4: New Housing Brings QuickFix the Antenna Problem

In the Internet pictures of body parts of an iPhone have emerged that do not fit with previous models. You can see the body frame in which the antenna of the Apple iPhone 4 integrated. Visually similar to the one shown under the current model. The individual components seem to be but arranged differently. The black grooves on the frame are in a different position.
The antenna of the Apple iPhone