(USA Today)  — After months of iPad mania, it’s time to see if the iPhone can pack another punch. Apple CEO Steve Jobs is expected to take the wraps off the fourth edition of the company’s prized smartphone today. It doesn’t matter that the iPhone is now in its third year and that what is likely to emerge is merely an update. Legions of tech geeks, Applecompetitors and ordinary consumers will be hanging on Jobs’ every word.

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