I have an AT&T account with the 3G and data.  I want to buy a phone for my daughter for Christmas and she also wants an Itouch.  Makes no sense to me to buy two devices and I was thinking of just getting an Iphone 2G and adding it to my account since those are affordable.  However, I don't want her to have a data plan as I don't want to pay for it and she does not need it.  Can you give specifics on how I could add an Iphone 2G to my account without the data plan?  
1. I think I will need to get a cheap throw away phone and add it to my account to get an active simm card.  
2. I would request a data block on that phone line when I add it.  
3. Take that simm card and put it in the Iphone 2G and activate it through Itunes and I am good to go?  
I am sure I am missing some steps or have this messed up.  I don't want to spend the money to try this if it won't work.  Also, would switching equipment affect the chaperon features of AT&T that limit who can call the device?  I would think that is network dependent not device dependent.  Thanks for the help.