The verizon dude installed and app killer on my dx yesterday when he activated my phone. He said that he always installs atk on everyone's phone. I was like NOOOOO The Android Forum says not too!!! So I got home and goofed around with it and it seemed that the apps and crap that I would "kill" with it would start running around willy nilly as soon I took my eye off of them. I found it to be useless and suck up my battery pretty quick. I just felt like I was babysitting the task killer all day. So I uninstalled it and I'm learning how to save my battery by trial and error (turn off this delete that), especially with market place apps that are nothing more than eye candy. Reading the tips and tricks and troubleshooting areas on this forum are a great help!