What I'm guessing is that Apple are perhaps going to introduce a new version of Mac OS X (either full version or trimmed for iPhone/iPod Touch/"iTablet," or perhaps both) that includes advertising if you get it for free (or at a reduced price), and no advertising at full price. The advertising, in other words, will subsidize the cost of Apple's R&D for future operating systems (and/or hardware). Just a thought--it seems a logical money-making and "best-of-both-worlds" step to me.

There. Fixed that for you.