The Liquid team is making progress on their build of Jelly Bean for the Galaxy Nexus! This rom is based on Android 4.1.1 and comes preloaded with the Imoseyon Lean Kernel. It is very responsive, slim, and recourse friendly! It is also packed with custom features like 5 lockscreen targets, Center clock and status bar mods, customizable battery icons in navbar, propmodder, Native OverClocking and Performance options, Weather and Calendar on Lockscreen, Power widgets in the Notification drop down menu, notification count in status bar, open recovery support, and much more!
This Rom seems to be one of the most stable around with some of the best battery life as reported by those who have used it. Team Liquid development has always been top notch.