So I've been doing some comparisons with these battery troubles I've been having. Doing one thing at a time to resolve them I've come to the conclusion that advanced task killer was in fact draining my battery one way or another. Monday Unplug at 8 am. It took 2 hours and two (2) 1 minute phone calls and my phone was at 79%. By 5 hours and 40 minutes it was at 31% - this was with the addition of 6 text messages sent and 6 received. Traded out the battery Tuesday: Unplug at 8:15 am. 49 minutes later I was at 91% battery life. Basically following EXACTLY the power loss that I was getting with the other battery. I uninstalled the Advanced Task Killer and noted that linear drop in battery level stopped - virtually flat lining at 90% for Wednesday: Unplug at 9:00 am. 52 minutes and 6 text messages later still at 100%. UPDATE: 1:45 PM. (4 hours and 45 minutes into it) After lots of text messaging, maybe 10 minutes on radio, and probably 5 phone calls ... from the same insurance saleswoman... the phone is at 80%. At this rate the phone should last almost 24 hours with this use. SWEET. And I was using the Advanced Task Killer to kill itself too. Also - not everyone seems to have this problem but I will tell you all right now my phone does a hell of a lot better without any kind of task/app killer than with it. Hope this helps some of you with battery trouble like I had.