On the 5th of April Vodafone annoubced that they had approved the Jelly Bean update for the Samsung Galaxy S II for both the Vodafone and 3 models. Unfortunately at the time, no date was given on when the update would be rolled out but today the information has been updated to advise that the update will begin to rollout tomorrow.
The rollout will be staggered as most Fimware Over The Air(FOTA) updates are, the scheduled rollout will move like this : Day 14 : All IMEIs are now eligible for update. To check if you have an update waiting for your phone, go to Settings > About Phone > Software Update and select the Check for Updates button.
We should hopefully get more details on what is included in the Android 4.1.2 update, size and whether the update will be available via Kies from Vodafone when they update their blog. If you own a Samsung Galaxy S II from Vodafone or 3 then tomorrow could potentially be a really good day for you.