I'm trying to give my treo to my sister, but wanted to reset the the phone and erase all my contacts and information before handing over to her. How can I do this?
You want to perform what is called a "Hard Reset"
It's pretty easy. You hold the power button while you push the reset button on the back. The treo will ask you if you want to erase all the data.
Here is a explaining what I just said above:
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