Android 4.0 also known as Icecream sandwich, next major release by google has many new features and enhancements.As promised this new operating system will have unified UI framework for both smartphones and tablets.
New features of Icecream sandwich
Refined and evolved UI,Icecream sandwich has richer UI and better animations.The home screen has virtual buttons at the bottom which is present on all screens and apps.This will help manufacturers to produce button less phones.
New Lock screen
When you click the recent apps button on the system bar you will get the thumbnail view of all the running apps and you can easily switch between apps with just a touch.Also you can remove the notification with a swipe.
Apps and widgets
This is an unification of smartphone and tablet interface that offers apps and widgets in a swipe.
Improved Dictionary and Spell checker
Data Usage monitor
You can monitor the data usage on your phone with the colorful charts and visualizations.
Improved Camera UI and effects
The new camera app has many new effects to try while shooting videos.Also single-motion panorama using which you can create wide panoramas easily without any additional applications.
With click of a button you can take screenshot of the phone and you can share the image in the gallery.
The advanced facial recognition allows face unlock system that helps to unlock the phone with your face.
With Advanced NFC technology Android Beam lets users share what they are using with just a tap.
The video demo of android icecream sandwich features
See more features at Android developers page