I want to post my feelings on task killers I do know that some people are for, some say they dont make a difference and some say that they will do more harm than good. So i thought i would try the following: ATK Taskiller Free Advanced Task killer Task killer Process Killer (made by easyfilter) and there are a few others that i have looked at, also tried without task killers. what did i find? They start off OK, as long as you set to kill the right services and apps, but after a week or so the phone would become sluggish, but it did improve battery life as i tried without and the battery would only last just over a day, whereas with a task killer, i could get through at least 2 days but as stated before the phone would lag So at the moment i am trying Process Killer (made by easyfilter) as i have been using there call filter app and touch wood, it is a brilliant task killer, phone does not lag when using it, in fact the phone runs smoother and quicker than without, battery is now into 2 days from medium use and it is still on 75% as we speak!! So to the people that say you dont need them, if Linux manages it own memory then why does it start to get slow even without a task killer and a restart of the phone is required? I have not had to restart my phone for 10 days now, it also has not re-booted itself. The widget is good as well, it turns red if it it using to much memory so one click and it turns back green. So to all the people that are unsure give this app ago, you will notice a improvement in your phone and best of all its FREE!!