Apple has finally gotten around to slapping Intel Core 2 Duos into all of its laptops, rounding out the line with Core 2 Duo MacBooks. The Cupertino co. loaded the high-end chips into its MacBook Pros a couple weeks ago and now the little brother of the family gets to play with the big guns, too. What does this mean for you, valued consumer? Eh, not all that much. MacBooks are a bit faster now, but probably not enough to make it worth selling off the pre-upgrade MacBook you bought last week. Don't fret, my impulsive friend, your regular Core Duo MacBook is still plenty fast and will run BitTorrent and Firefox just as snappily as can be.