MdExTexan
Lurker
The AT&T rep that sold me my phone recommended Advanced Task Killer, and I installed it the day I got my phone. (Dec. 20th). He said killing open apps would save battery life. Sometimes when I open ATK I find apps open that I don't remember having started, so I close what I'm not using. I may try not using it tomorrow to compare battery drain with and without.
Apps set to respawn require more CPU as the app keeps relaunching itself over and over... kill, reload, kill, reload... uses more battery in the long run.

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