[JaredC01]

coppermine, you may want to read the thread posted called 'BIG problems'... Based on one of the posts, the Facebook sync has a looping issue that will constantly keep your phone from sleeping, and will keep looping data downloads all day. I had the same issue and it killed my battery in a few hours. You may want to just disable the Facebook sync until they fix the problem, instead of turning all sync off.

As for what you need to kill and what you don't... It's a Linux based kernel, which handles RAM differently than a Windows machine. You do NOT need to kill any apps that are running unless it's not responding and won't pop up to force closed. As for a change in battery life while using a task killer, I'm calling placebo effect. The data stored in the RAM doesn't take up any more battery than it would with the RAM cleared. To top it off, if the RAM is already holding information for a program, once you use the program, the system won't have to load any more than it has to, saving battery and CPU cycles once the phone is started up.