Yup. The specific device is irrelevant. No need to create a new thread asking this question every time a device is about to be released...Is it possible to add a line to my account and get the Droid X for the $199 price? How much extra does it cost per month for the extra line if I don't change the plan or anything?
Do the math.You can do that, but is the $9.99 plus tax/month worth it?
Worth is always highly subjective. It's to each person to determine for his/her self.