Originally Posted by afv011
App killers are counter-productive, they're likely to cause more harm than good. Android manages apps, you don't need another app to do it. When your killer kills and app, it may load again by itself (so you waste battery killing it and starting it). Even if it doesn't auto start, when you launch it again it has to reload its state from disk, as opposed to from memory. Rule of thumb, don't mess with Android's app manager, let it do its job.
The SGP5 comes with a built in Task manager/killer by Samsung. It works well. You do have to close some apps that will stay in memory. Unlike other Android devices that seem to manager this okay this device doesn't you have to keep a close eye on what's running and what needs to be killed because it's suddenly taking up 50% of more of your cpu and the device will come to stand still if you don't. The Kindle app is one that does this alot. Another is the built the browser which I don't use because of it.