No. 2: iPhone 4 shortagesStrong demand is only half the story for Apple's iPhone sales debut. Limited supply is the other. A shortage of in-plane display panels, the crucial part of Apple's touted retina display screens, has forced Apple's contract manufacturers to cut production rates in half to 1 million iPhones a month. This means there won't be enough iPhones on hand to meet the presumably high demand. Though it's not a terrible problem to have if you are a gadget maker, sellouts and delivery delays will mar Apple's big iPhone 4 debut. The frustration could push buyers toward other phones.
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