I searched around but didnt find an answer for the exact situation that i am in. Now that Apple will be enabling Bluetooth voice dialing i am going to upgrade to the 3G S once 3.1 is released. My upgrade elegibility is not up until November, BUT we have been discussing adding a 4th line for my 11 yo son, we have an old, basic, non-camera phone for him to use already. Can an upgrade swap be done on a new line on a family plan? Could i add his line and get the 3G S, then swap it to my line, cancel the data plan on the 4th line and give him the basic phone to use? I will probably give him the 3G to use as an iPod touch with no sim or sell it on ebay Thanks for any help.