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Today, Apple CEO Steve Jobs will announce a MacBook with a little somethin' somethin' wireless. We think. We guess. We have no idea. It'll change the world or something. Meanwhile, Microsoft has already announced its own game-changer: the ad-supported grocery cart.

The cart-mounted console will help customers find products in the grocery store and pay from them without waiting in a checkout line. Also, the cart console will serve video ads, brought to you be the technology Microsoft acquired when it bought aQuantive last year. Microsoft will test the device in ShopRite supermarkets this fall.

Yeah, yeah, laugh it up, fanboys. Jobs is going to introduce Air 2.0 (slogan: "Breathe Easier"? ) today. But last we checked, you don't spend spend 32 cents out of every dollar you earn on your broadband connection. No, that would be for groceries, pals.