The Jelly Bean (JRO03O) update that popped up on a Verizon Galaxy Nexus last night is now available for download. If you want to flash it though, there are a couple of things you should know. First, you need to make sure your stock G-Nex is running IMM76Q. Second, this is a test build and apparently not the official build that users will see. So if neither of those things bother you, then you should jump all over this.