We’ve started rolling out Android 4.0.4, Ice Cream Sandwich, to UMTS/GSM Nexus S, Xoom Wi-Fi, and HSPA+ Galaxy Nexus devices, and we’ll be rolling it out to more devices in the coming weeks. Some of you will be receiving Ice Cream Sandwich for the first time, while others will be receiving an update to your existing Ice Cream Sandwich experience.
We are hearing Google has added over 100 improvements, tweaks, and changes to Android 4.0.4 over the previous version 4.0.3 that was only rolled out for a short while. Unfortunately, there’s no word on when the update will officially available for Verizon Galaxy Nexus owners or Nexus S 4G users.
Source: Google Plus