Benefits of Android 4.0 Ice Cream Sandwich over Android 2.3 GingerBread

1)Refined and easy to use User Interface. Android 4.0 ICS 4.0 has made common actions more visible and easy to access.

2)Visual Multitasking :The Multitasking in Ice Cream sandwich has been made more easier and more visual.

3)Improved Battery performance : Claimed by Google and evident in tablets but some mobile phones has noticed a decrease in battery backup after upgrading Ginger Bread to Ice cream sandwich .

4)Better Network Data Management :  Effective usage of data over a network (in 3G or wi-fi). Effective use of network data while downloading apps, streaming content and synchronizing data. 

5)Android Beam : A sharing application based on NFC (Near field communication)  which allows two NFC enabled devices to share images, contacts, music etc. This feature is not available in Android 2.3 Ginger Bread.

6)Powerful Tabbed Web browsing : Now navigate through entire set of open internet pages simply by scrolling vertically through live thumbnails.

7)Powerful and refined Voice input Engine which offers more practicality 

8) Face Unlocking feature In Ice Cream Sandwich.

9) More compatible with new and latest hardware available.