I have just uninstalled Advanced Task Killer as I haven't really seen much improvement with the battery life.
All this app has given me is an obsessive compulsive disorder which means everytime I have finished with a game or app, I open up the task killer to check what is running and kill everything!
I have cut the strings...
Now I have uninstalled it, I will see if I have a nervous breakdown at the thought of everything running in the background!
I have recently installed HelixLauncher too, which I think is awesome, has made the phone even better on the eye and even easier to use!
Rock on the X10!!!
Will post my conclusion after a few days or so of monitoring my battery life and charge frequency!

