After ugrading to my Thunderbolt from an Incredible with the extended battery, my first week was a misery. I use my phone frequently for work calls and a fair amount of daily emails and some fun as well. I was charging the Thunderbolt 4 times a day and I really cant see using the behemoth extended battery. I tried taking the screen off auto brightness, but it left the screen practically invisible outside (I'm out a lot). then I read that Launcher pro helped some and I decided to try it. Nice, but I don't think it saved any power. Then, 1 week after I bought it, I noticed the battery lasting much longer a few days ago (nothing to jum up and down about, but better). A few days later again and it seems like my thunderbolt can last on two charges a day. Anyone notice this after a week, or could launcher pro actualy be making a difference?. I have a week left and don't know if I should return my Bolt go back to my D Inc and wait for new phones. Announcement of the Sensation doesn't help UGH!!!!!!