I'm not sure if this version will help any of the ROM makers out there but good to know things are progressing:
http://www.engadget.com/2012/04/20/android-4-0-ice-cream-sandwich-galaxy-s-ii-now-available/
http://www.engadget.com/2012/04/20/android-4-0-ice-cream-sandwich-galaxy-s-ii-now-available/