After an initial debut in France, Motorola has begun distributing the Android 4.1 update to RAZR i handsets in the UK today. Just hit that 'Check for update' button as often as possible over the next week or two, and you should be able to get it. Here's Motorola's statement on the rollout.
We’re excited to announce that MOTOROLA RAZR™ i with Intel Inside is getting upgraded to Android™ 4.1 Jelly Bean. Starting today, the upgrade will be rolled out to users in phases. Jelly Bean includes a number of fantastic new and improved features, including Google Now, Voice Search, and improved notifications.