9to5Mac just posted three high resolution photos, claiming to show both the front and back of the next generation iPhone from the "supplier."
The long rumored smaller dock connector is present, the earphone jack has been moved to the bottom corner of the device (the first time Apple has done this on one of their smartphones), the speaker grills have been redesigned, and there is a new opening between the camera lens and the LED flash. We're not sure what this opening is, but it is possible that Apple is moving the second microphone (Apple started shipping two microphones with the iPhone 4) to the back for improved video recording.
According to the supplier that obtained these parts, the new device will be the same width but slightly longer. A front glass part obtained by the supplier has room for a taller display that keeps the same width. The glass also shows that the FaceTime camera has moved to above the earpiece.
Check out the images below...