>According to Apple, most iOS devices are up-to-date. Android, not so much<
I call FUD. Unless you include working iphones (original, 2, 3 etc) - and for ios6 you can now include the original ipad and iphone 4, compared to the fact that ICS was never designed to work on the older tech android phones like HTC Wildfire which are still widely in use. (NOTE: Wrote this before reading the comments).
Thank the gods, because Zuckerbergs ios app (for ipad at least) is beyond useless, you still can't share other peoples posts, and you have to go on the website just to ensure what you posted in the app 'took'.
>and what appear to be vastly improved Chinese-language capabilities<
Our new BFF, and who are in no way guilty of human rights violation that would ensure the leaders burned in hell (if such existed), after death - let's just hope karma proves true.
Jeez, finally a full screen option (via tap no less), well done Apple, only taken you three years to do this - still no touch options to navigate (like swipe right quickly to go back a page), maybe ios7, eh?