I had the same thing happen this weekend when my wife needed to exchange her EVO. The Sprint sales person was saying that she needed a Task Killer. I had to inform them that it causes more harm than good.
I think the problem is that they were all taught months ago, before FROYO came out, that you need a Task Killer. This was true with Android 2.1 and earlier but not now. The carriers need to update their manuals and send their sales associates back to class.
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