Apple's forthcoming iOS 4.2 update for the iPhone, iPad and iPod touch includes a number of subtle improvements that have not yet been publicized, including expanded features for YouTube and FaceTime.

A few minutes ago Apple announced the release of iOS 4.2 today. The download links aren’t live yet, and we speculate the engineers at Cupertino will flip the switch at 10AM PST. In the meantime,though ...