This morning, as an experiment, I set the memory usage preset to very low in LauncherPro preferences to see if I got any increases in battery life. Has anybody tried this and gotten any noticeable increases without too much sacrifice in performance? I also used SetCPU to under clock the processor down to 400mhz and have noticed HUGE increases while not being too laggy. I am now pushing 24 hours on a single charge which has never happened before with how much I use my phone.