For would-be hackers of the GSM veresion of Galaxy Nexus or for those rooting their phones for the first time, it looks like Google has decided to release factory images for the Galaxy Nexus, providing you guys a safety net should anything go wrong during your attempts to hack the device.
This includes the bootloader, radio, system, recovery, boot and userdata. So if you were planning on hacking your Galaxy Nexus any time soon, you might want to download the factory images first before making your attempt. The download can be found here, but if you want more details you can head on down here. Let the hacking begin!