There have been leaks previously of seeing Android Ice Cream Sandwich on Nexus S. However, it is official that the Google Nexus Prime will be the first phone in the world to include the cold treat, which may be released via Samsung this coming October, confirmed from Google itself, even mentioning that SK Telecom will have it first. Again, it looks like Korea will be having that home court advantage, just like having a souped up Samsung Galaxy SII with LTE in the name of Celox.
To refresh your memory, the Google Nexus Prime has a 4.5-inch Super AMOLED HD capacitive touch screen, and a dual core 1.5GHz processor, as far as specs is concerned. It has never been confirmed still if this would be named as version 4.0 after Honeycomb or 2.4 after Gingerbread. Nevertheless, just get that budget ready since we may be seeing this phone to be out in online stores like Amazon or eBay.
Source: OLED-Display