I have a galaxy I9003, I am not able to narrow down on a particular task manager for best optimization of my proccessor speed as well as memory. I tried android assistant at first (I used it becoz it was very effective on my spica) but it did not prove to be the same on galaxy S. Then I user Advanced Task Killer by rhythm which was good but once I activated it to put the system processes on the killing list. Result was it made the phone slow as it probably killed basic services like dialer or phone. After searching on forums I got to see the advise that task panel was brilliant on Galaxy I9000 S. I installed it, it worked fine for some time then I found doing the same as the former one and on added problem was the flow of any items say music list or contacts were arbitarily getting affected. Now I am using the default stock on, its definitely good but I dont see much of memory free at any point of time, and moreover its a manual one. Please suggest me the best one friends I am new to galaxy S.