I thought face unlock was the only truly innovative feature....and it failed. Also seemed like it might take longer than the pattern/combo unlock, which would defeat the whole purpose. Even if it works 9/10 times, it won't be useful.
Camera seemed nice, but I doubt it'll be better than the iP4S. It looked fast, though.
Android Beam is meh.
Widgets are nice, but still make the home screens look cluttered to my eye.
Folders are exactly from iOS (but Apple took the notification center so I guess they're even).
Dialing shortcuts are nice.
Keyboard/dictation look better, but only time will tell.
Mixing voicemails in with recent calls doesn't make any sense to me. I much prefer iOS.
Browser syncs bookmarks just like iOS. Can save pages for offline, just like iOS, but it doesn't appear to sync like reading list.
Can take screen grabs just like iOS.
Photos now by places and people, just like iOS
No SD card slot on the Galaxy Nexus. Its hard to beat Apple's audio/video playback and the option for 64gb.
Android is still the best as far as social integration is concerned.
Bigger screen is nice, but I'm not sure about the ergonomics. I use my iPhone one handed at least 50% of the time.
LTE is great, but I'm getting really fast speeds on AT&T on the 4S (plus the browser is so snappy). Wonder how the battery life will stack up.
At the end of the day, I didn't see anything really new here. They did a great job addressing the cold look and feel of Android; its definitely more compelling. However, Apple knocked it out of the park with Siri, camera performance, iCloud sync, and the raw speed of Safari on the iPhone 4S. ICS does make Android more appealing, but its still far enticing me to switch. Can't wait to see how the browsermark scores stack up.