Google has started the deployment of a new platform flavor on Nexus devices recently, with Nexus 7 and Galaxy Nexus being the first to receive it, and it seems that custom ROMs based on it are already available for download.
We’re referring here to the Android 4.1.2 Jelly Bean OS version and to what is said to be a pure AOSP Jelly Bean 4.1.2 ROM destined for Galaxy Nexus i9250 GSM/HSPA+ (maguro).
The ROM comes from XDA-Developers forum member kalo86, and features build JZO54K.
Those who want to give this ROM a try should head over to this thread
over at XDA-Developers for the download links and to learn some more info on what installing it involves.
The ROM is said to have been already rooted, which means one less trouble for those who want to tweak their devices