so i have a family plan with my wife thru at&t. i upgraded to the 3g last yr and im not eligible for the 3gs upgrade but my wife is. my question is can she upgrade to the 3gs but make the 3gs my number/phone and have her use the 3g i have now?
Just switch the sim cards in the phones once you upgrade. Not 100% sure on that. But it's worked in the past for me, and I plan on doing it too!