Great vid here giving an overview of features, looks awesome. So many new features.
I like the new ability to download vids directly from Safari.
So many new multi touch features.
Pleased they've finally added a scrubber for scrolling too! Small stuff like that is so useful. I remember writing to them a few years ago about that when I first saw it in the Dropbox app.
They also fixed and juiced up search in messages, which is great if you text a lot of people.
Apparently find my iphone works offline now if bluetooth is on and in range of another iPhone.