Well if you are CDMA version of Samsung Nexus S 4G than good news for you as their is leak of Android 4.0.4 ICS ROM For Samsung Nexus S 4G now available and you can install it on your phone and it will come with some great features and option which improve your phone! Check more information here :

Android 4.0.4 ICS ROM Leaks For Samsung Nexus S 4G