The Apple Tablet, a riddle wrapped in a mystery inside an enigma, has just gotten a little more interesting. Thanks to some crack investigative reporting, MacRumors discovered that Apple purchased the domain for "islate.com" back in 2007. Dum dum dum!

What we know: islate.com was registered to Apple in 2007, through an intermediary (to disguise its true owner). At the moment, that domain doesn't seem to lead anywhere—and there are a couple explanations. First, Apple bought it as a protective measure, to stop anyone else from using that "i" prefix with that particular word. Second, Apple had or has plans for either a product or a project by that name. Third, it's the tablet. Or fourth, it's Apple's take on Slate.com (sample headline: Why I Hate Christmas Presents). Maybe we'll find out just what that means in January, when the tablet is rumored to be announced. [MacRumors]