Wow! I love it. I love the new interface on the Facebook website and they’ve basically brought it to the iPhone. Love it. The scrolling thing at the top took me a minute to figure out, so discoverability of that feature isn’t that great, but it works well once you figure it out (drag the bar to scroll the bar left/right).
Missing – how do you add a new friend/group? That’s the only think I think I’d ask for in the app. And then I might not ever use the website ;).