Following yesterday's Jelly Bean AOSP invasion, the HSPA+ Galaxy Nexus is now receiving the release build 4.1.1 (JRO03C) of Jelly Bean. That's indeed great news, but since the rollout is usually staggered, not all phones are allowed to receive it the second it's out there. If you're rooted or have an unlocked bootloader, why not just bypass the line and flash the update manually? I just did, and it took only a few minutes.
Update 7/11/12 4am PT: we now have yakju!
Here's what you need to have for this method to work (I will update the post if we figure out the links to OTAs for more variants):