Flashing the kernel did break my battery meter; it'll stay at 100% for an hour or so then plummet to 60% over the course of the next hour, then hold there and slowly go down. Aside from that, seems like setting an 806mhz OC with a 245mhz min has helped battery life. Previously with light/moderate use I'd be able to get maybe 10 hours out of the battery. I'm sitting at 12 hours now on the battery and it's still at 54% (and since I was trying to fix the meter today, kinda want this to die so I can recharge it and go to sleep without having to worry about it being dead tomorrow morning). Admittedly though, with a broken meter it could just drop out and die in a few minutes, though it's still an improvement. Depending on what you set up, and how much CPU your phone normally uses (mine actually ends up staying underclocked most of the time) your miles may vary.