Yes, the Galaxy Nexus has been rooted. It’s a Nexus, folks. Rooting it should take less than 5 minutes, and that includes the time involved to unlock the bootloader. You don’t need fancy apps, zip files or anything else and can do it through a couple of simple commands. For those not interested in learning a couple of adb and fastboot commands though, then the folks at Modaco have you covered with their Superboot package. It’s essentially a 1-click root that does all of the dirty work.