Microsoft sold more than 1 million Xbox Ones within 24 hours of the console`s Friday launch. Sony`s PlayStation 4 sold at about the same rate when it debuted the week before. The launch is auspicious, if not necessarily extraordinary. It`s been seven years since Microsoft released the Xbox 360, after all; with so much pent-up demand, an early rush of sales was inevitable. Here`s what`s more important than day-one sales: whether the Xbox One`s performance remains strong enough to affirm the consumer-oriented aspects of retiring CEO Steve Ballmer`s "One Microsoft" strategy.