Wait a minute, the Playstation? Where are they getting these numbers from? Apparently Net Applications gets these figures by monitoring browser information from sites tracking their hits through their products (of which Hitslink is one). So a jump for "Mac" systems doesn't mean a jump in sales figures, or even ownership-- all it means is that more people whose browsers reported them as Macs visited Hitslink sites in December than in November. And more people whose browsers reported them as the iPhone did the same. Not quite the definitive numbers they first claim to be, but Net Apps says (of course they would) that these numbers do correspond to trends found by more objective studies.
And as long as they're firing up the flames on both the OS wars and the gaming platform wars, Net Apps goes ahead and swings for the triple play-- they also report that, according to their numbers, the map of people reporting as Mac owners corresponds extremely well to the blue sections of the red/blue maps of the last US elections. Um, yeah-- we're not touching that one. You guys can fight it out in the comments.