Im wondering whether the 3G iPhone will use ATT 3G for voice and data or just for the data part when you are in a 3G coverage area? I am also wondering whether 3G voice (UMTS W-CDMA) has much better call quality and reception than regular GMS? The reason I ask this was because I stood in line on launch day for the iPhone and switched from Verizon to ATT and thought that the iPhone was the greatest thing. Well 6 months later I put my precious in the closet and went back to Verizon and got the Blackberry Pearl (Great, great phone!) beacuse the ATT phone service was absolutely unbearable here in Jacksonville, FL. I couldnt even use my phone in my house which is in the middle of a major metro area of Jax (Southside & Baymeadows). I couldnt take it anymore and had to go back to my beloved Verizon network. I miss the iPhone and now that the 3G iPhone is coming out I am wondering whether it will use the 3G for voice too because ATT has a pretty extensive 3G network here. I am thinking of buying the 3G iPhone and trying it out to see if voice is much improved before I would switch over my line to ATT again.