Appleleaks has just posted an image on their website claiming it to be the logic board of either iPhone 5 or iPhone 4S handset which adds even more detail to the earlier claim from MacRumors regarding leaked back cover of N94 iPhone 5 prototype device which is speculated to support both CDMA and GSM technologies in the same handset.
When this newly leaked image is compared with iPhone 4 (GSM & CDMA) teardown images from iFixit, it is noted that new logic board resembles more with that of the CDMA iPhone 4, except that it sports a SIM-card slot too. Also, the larger processor housing space on the logic board could confirm the inclusion of A5 chip in the next generation iPhone handset. According to MacRumors:
That inclusion of the SIM-card slot on the new logic board has resulted in a reshuffling of the chip locations on the front of the board, while the back side remains quite similar to the CDMA iPhone 4 logic board.
Notably, the relatively large area on the front of the logic board designed to house the main processor for the device is rectangular in nature on the new board, suggesting that it is designed for the rectangular A5 system-on-a-chip found in the iPad 2 rather than the square A4 chip found in the iPhone 4 and original iPad.
What conclusions can we draw from this leak? Well at least some form of next gen iPhone handset, either iPhone 5 or 4s, will sport the faster A5 processor while presence of a SIM-card slot on a CDMA logic board also confirms GSM compatibility for this device.