I found this new ICS leak Googling (droidrzr.com) about battery life/display being high on ICS. I was running the previous .214 leak and hadn't really noticed anything after a couple of days outside of signal issues (completely dropping).
I flashed this new leak in hopes if revolving that issue as well as increased battery life, and the display always reading high. So far there's definitely a speed increase in the kernel it seems, as well it comes with Chrome pre installed.
I am not rooted (yet). Waiting for more roms/development.
Anyone else give this a whirl?