Switched On: The five P's of the PS4

Each week Ross Rubin contributes Switched On, a column about consumer technology. Throughout the history of home game consoles, it's been notoriously difficult for a leader in one generation to maintain its leadership in the next generation. Sony, for example, went from dominance of the sixth-generation console market, knocking Sega out of the hardware business as Microsoft was gearing up for the original Xbox, to a third-place finish in terms of installed base with its seventh-generation entry,...