The pre-installed YouTube app that had been part of the iPhone since it came out in 2007 is gone (you can now download a new application made by YouTube owner Google Inc. in Apple's iTunes store).
Even more noticeable is the absence of Google Maps.
Apple has cast aside one of Google's most popular services for its own mapping system and, from what I saw, it looks like it's going to keep users happy.
It offers three-dimensional renderings of many major cities, aerial views, and, best of all, turn-by-turn directions narrated by the iPhone's virtual assistant, Siri.
Assuming the directions are accurate, I doubt Google Maps is going to be missed.