Google supports the modding and development community and have given us a great gift for our journeys. A flashable factory image for the Galaxy Nexus has been released that includes a flash-all script which will allow you to reflash all of the image’s components in one fell swoop (basically a “back-to-stock” script). It’s a great tool for developers to test ROMs as they can test knowing that any software issues can be easily wiped away. Grab your download here. [Google Groups via Android & Me]
[Update]: Yes, this is only available for HSPA+ and GSM versions. Other versions may get a similar file when those devices become available, but steer clear of this one if you’re not sure (even though this applies to every unit released to date so far).