What the 3G iPhone specs may look likeThis article contains unofficial information.
Although no significant changes will be done to the UI, the new design should shave 2.5mm off the current thickness, resulting in a 9.1mm slim candybar – Great success! In addition, the rumors point out that some new materials would be used, for more high-end feeling.
For its 3G, the second-gen iPhone is expected to use the Infineon S-GOLD3H chipset, which has support for HSDPA 7.2Mbps. Additionally, it can be used with up to 5-megapixel camera modules, so we may see some improvement in this aspect. However, a really great camera is not likely to be integrated in the “music phone”.