If you've been using a Honeycomb tablet, the new lock screen won't seem like much of a change, but it's a big improvement for smartphone users who've been stuck with the standard Gingerbread lock screen. Swiping to the right unlocks the phone, similar to the current Honeycomb setup. But with Ice Cream Sandwich, you can also slide the lock icon to fire up the camera.
What's more, you can now view and access notifications in the Notification Bar at the top of the screen while your device is locked. Tired of having to unlock your phone to change songs in your music player app? Ice Cream Sandwich will also let you manage your music from the lock screen.