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August 20, 2009 — David Pogue, Bob “Dr. Mac” LeVitus and David Biedny

David Pogue, from The New York Times, discusses his latest book, “The World According to Twitter”and lots of other stuff; a Mac update from the inimitable Bob “Dr. Mac” LeVitus; Special Correspondent David Biedny examines the death of PowerPC apps and a great new iPhone app that he has devoted hours to in recent weeks.

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