I am sorry if this is something that already was talked about. However i didnt find a good thread about this so i am going to start a new one. I was told by one geek that i know (trust me, a big big geek) that Android OS learns what apps you use and which you dont. It takes time (1-2 weeks) of normal usage though. I also found this article FAQ: Why You Shouldn’t Be Using a Task Killer with Android Geek For Me – Android CDMA Sprint Hero Now I uninstalled ATK and seeing if the phones performance will be affected in the long run. I have a feeling that the first several days will be pretty slow, but i bed it will get better. What do you think? My buddy has been using his Eris w/out ATK for a week now and everything is smooth and quick.