When I went to sleep last night my battery was charging. I woke up at some point in the night and unplugged it at 100%. When I got up this morning my phone was at 70%!!! Is that normal? Also, I looked through my settings yesterday to see what might be running and tons of things were running that I've never even opened (for example the MP3 store). I know there is debate over using an app killer, but why are so many things running on my phone that I've never opened? Thanks!