So I have read all the comments on ATK and task killers in general, and have decided I don't want to mess with one. BUT, on Droid-Life.com, they have a weekly app roundup where they review a few apps every week. I came across one today called MultiTask Manager. When you open it, it basicallly lists what apps are running in a scrolling ribbon at the bottom of the screen. Tap to open one, or long press to get the option to kill it. EXACTLY what I was looking for. And let me tell you, being new to Android, I had no idea how many apps keep running in the background if not closed properly. I can't wait to see how my battery life is now. If you want, here is the article to get the app or scan below! Enjoy!