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Why the iPhone is about to get more expensive

When Apple debuts the next generation of iPhones this week, they're likely to come with an unwanted change: a higher price tag. A price hike from the supply-chain powerhouse would be the clearest sign yet that soaring memory costs have become unavoidable - with no end to the memory crunch in sight. Call it "chipflation" or "RAMageddon." The shortage is reversing a decades-long decline in memory costs that helped…