Using iphone data plan on 3g Netbook

[Lizyy]

Hi, I'm planning to get a built in simcard 3g net book, and i'm currently have the 3g iphone with ATT service. I was wondering,is it possible that i insert the simcard from my iphone to my netbook and search the web. Will ATT be able to find out that i do that, and charge me some additional fee?

Have anyone try it? i just want to make sure before doing that.
thanks

[GIRLLLLLLLLLLLLLLLLL]

I'm pretty certain they would notice what's accessing their network and shut you down or notify you and add the plan. You might be better off just tethering directly from the iPhone.

[Cowboy]

^^^^
Tethering would be the best bet. Att will probably catch you and you will get charges