I recently rooted and installed CM9 and the battery life, while still awful, is significantly better. Previously, I could be sitting with the phone in my pocket for 2 hours and it would lose 15-20% of the battery life (due to poor reception). With CM9, in the same place, it'll only lose about 5-6% which means I can actually use the phone for most of the day.
From what I've read about JB on T-Mobile Nexus S's, it looks like battery life is even worse than ICS. So I'll wait for CM10.
What about everyone else?
From what I've read about JB on T-Mobile Nexus S's, it looks like battery life is even worse than ICS. So I'll wait for CM10.
What about everyone else?