A post on China's Weibo has shown a reputed iPhone 5 mainboard that, for the first time, shows its use of the A5 processor. It resembles an earlier parts leak and is distinct in looks both from the iPhone 4 and iPad 2 mainboards, ruling out the A4 or the tablet implementation of the A5. The shot also appears to show a 1,430mAh battery, up very slightly from the 1,420mAh lithium-ion pack in the iPhone 4.