Here's a neat little tidbit for you. As of this June, Apple had sold over 100 million iOS devices -- iPod Touches, iPhones, and iPads. Recently confirmed, 100 million people are now using the Facebook for iPhone app. Actually, more like 103 million. Now of course since June Apple has sold millions more iOS devices, but it can't be too far ahead. What this means is nearly every single iOS device ever sold has the official Facebook app installed on it.

One more stat, too. Of the 150 million people using Facebook on a mobile device, Facebook for iPhone captures an exceptional 68%. Apple has good reason to get to work on deeply integrating Facebook into iOS a bit more.