"Facebook insisted to The Register that no personal info is being trafficked, only things like the operating system version and device type that Facebook uses to keep the app updated."
If the app is installed it will automatically update itself to the latest version.
"By having Facebook apps pre-installed, we ensure people have the latest version of the application installed on their device"
They have to have the app pre-installed as that's the only way they can be sure it's the latest version.
Would Zuckerberg care to explain the direct contradiction between those two?