New to this board and have been searching...but unable to really find a clear answer and hoping someone on here has done this, or know of a solution. I have: 3 phone family plan 2 iphone 3g plans (upgrades not avail. until January) 1 older Tilt phone (upgrade is available on this line) Question: If I was to upgrade the "tilt" line to the 3GS, how would I be able to user my old 3g phone number. I know I could just put the sim card in the new iphone and it should work just fine (or so I think). Can I cancel the data plan on the old 3g iphone? I guess what I want is 2 iphones and one older phone on my account. I am not looking to pay 3x$30 for internet. My 10year old uses the third line and I just am not ready to give him full internet access. I would love to upgrade that phone to get the discount, but not sure how to work it out. Confused!... any help? I am fine with the $60 a month for internet, but $90 is a little much.