it is called tethering. you can do it easily with just about any smart phone, ala iphone, blackberry, etc... the problem is that you have to have to have the data add on to your phone plan, i think its standard on a ni phone, and is on a blackberry if you want to use it as a blackberry. the cell companies do not want you to tether with out paying them extra a month. with the usb cable that comes with your smart phone and some google searches you can figure it out, even in linux. just dont over do it, it would be pretty obvious to ATT that something was up when out of no where your data usage skyrocketed! but good to have in a pinch or to check email on the go. combine it with a net book and your golden!