It turns out that the XDA member whose phone is the subject of the photograph showing the update, could be a tester. The phone has a serial number on top of the device and no one else has claimed to have received the update. If he is a tester, it could be some time before the update is pushed out to the public. But with the ruling of the Federal Appeals Court freezing the ban on the phone for now, it is conceivable with the right rulings, that this update may never see the light of day.
While some Samsung GALAXY Nexus users have been posting on forums that they are excited about the update, perhaps we should explain this slowly. The update is going to be removing functionality on the phone, not adding to it. With the current hold on Judge Koh's injunction, we could see the Samsung GALAXY Nexus return to the Google Play Store next week, as has been rumored, with Android 4.1 installed.
source: XDA via DroidLife