Zhen Ding Technology Holding and Flexium Interconnect will be responsible in supplying Apple's vital internal component — motherboard — on their upcoming Iphone-6, they will supply the 4.7 and 5.5-inch which will be offered for the market somewhere around this 2014.
A strong shipment from Apple is one sign that there is a strong demand for the said handheld device.
Iphone 6 in 4.7" Display