why pay 200 bucks for a mobile router, when you can get the cingular usb card which is the same way to get to the net. with this card, you can unplug it and use it on the go. use with any computer with usb port. unless, you want your own network in your car. you dont need a mobile router if just getting on-line. cingular give the usb card for free w/service agreement.