Even though an official version should be made available in the coming weeks, an enterprising XDA-Developers member has brought an Ice Cream Sandwich port to the Nexus S a bit early.
The version combines elements of the recently-released AOSP source code for the Galaxy Nexus as well as some choice bits from Gingerbread to keep everything moving smoothly. Though USB mass storage and the camcorder are not currently functional, everything else, including voice and data, are running perfectly.
If you’re a regular ROM flasher and can’t wait any longer for Google to give us an official version, follow the link and get the latest and greatest a few weeks before everyone else.
Via: Android Central