Google reveals the next version of android: Ice Cream Sandwich

Just when you thought Google was losing focus, they spill the beans on the latest Android OS. You can formally refer to this update as “Ice Cream Sandwich.” With it comes a few key things. One would be the UI, according to Google, the UI has gone through a massive redesign. Second, its got some cool NFC beaming abilities. You can expect people to send their pirated music and apps with ease. Three, its got a cool face unlock feature. If it sees your face, it unlock; straight forward and cool.

check out the official lists of features.

Option to use virtual buttons in the UI, instead of taking up capacitive touch buttons
Widgets are in a new tab, listed in a similar list to apps
Folders are much easier to create, with a drag-and-drop style similar to iOS
A customizable launcher
New phone app with visual voicemail functionality that lets you speed up or slow down voicemail messages
Pinch-to-zoom functionality in the calendar
Gmail has offline search, a two-line preview, and new action bar at the bottom
Swipe left or right to switch between Gmail conversations
Integrated screenshot capture by holding power and volume down buttons
Improved error correction on the keyboard
Ability to access apps directly from lock screen (similar to HTC Sense 3.x)
Improved copy and paste
Better voice integration
Face Unlock, a facial recognition service
New tabbed web browser, allowing up to 16 tabs
Browser now automatically syncs your Chrome bookmarks
Modern "Roboto" font
Data Usage section in settings lets you set warnings when you reach a certain amount of use and disabling data when you go over your limit
Ability to kill off apps that are using data in the background
Camera app: zero shutter lag, time lapse settings, zoom while recording
Built-in photo editor
New gallery layout, organized by location and person
Refreshed people app with social network integration, status updates and hi-res images
Android Beam, a NFC feature that lets you exchange websites, contact info, directions, YouTube, etc.