Google already announced that they will be releasing the Android 4.0 Ice Cream Sandwich update for Google Nexus S . while Android Ice Cream Sandwich SDK was also released by Google Yesterday.
Watch this on How they Ported Android 4.0 Ice Cream Sandwich To Nexus S 4G. According to the guys over at Android Central, one of their Member called Beezy has already Started working on Porting Android Ice Cream Sandwich onto the Google Nexus S 4G.
Currently, still working is in Progress, and they expect to have a Working ROM available Soon to Download it. via