Updated iOS 4.3.3 Jailbreak May Reduce Your Battery Drain
I0n1c reports that the updated iOS 4.3.3 jailbreak released this morning may also reduce battery drain.
BTW: by using the latest RedSw0w you also might decrease the battery drain.
Process Priority was not restored after the kernel exploit. That might have caused some battery drain.
You can find more information on the RedSn0w and PwnageTool update here.