At 3:32 p.m. on Oct. 19 an e-mail flashed across the screens of the 230 Microsoft employees working slavishly to bring the Zune music player to market. The sender was their brash team leader, J Allard, 37. The message included a link to an old video of Steve Jobs on YouTube, mocking Microsoft's creativity. "The only problem with Microsoft is that they have no taste," the Apple Computer boss says. "They have absolutely no taste."

Allard was using one of the oldest motivational tricks in the book--his version of a football coach posting an opponent's quote on the locker room wall. "I for one...want to see this guy eat his words," Allard wrote. "Those are fighting words. He is speaking to every one of us and saying that we don't get it."

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