I just bought one of the 8GB original iPhones to replace my Motorola Z9 but don't know if I can use my 3G sim card from the Z9 in the non 3G iPhone. Does anyone know if this will work or do I need to go get a new sim card from ATT in the morning?
It should work. I went to Six Flags a couple of months ago and did not want to bring my 3G. So, I switched SIM cards with my previous phone, an unlocked non-3G Motorola. It worked perfectly.