If you were wondering exactly what Apple had in mind with its acquisition of Quattro Wireless a few months back, the picture gets a little clearer today with the announcement of the iAd mobile ad platform alongside iPhone OS 4.0 today. This makes things considerably more interesting for the mobile advertising business as a whole, since Google's been trying to seal the deal on an acquisition of industry leader AdMob for a while now in the face of some pretty intense FTC scrutiny. Certainly seems like this would grease the wheel a little bit, doesn't it?