Yes it did the iphone was has supported hsdpa since the 3gs and got hspua with the 4 the same tech used in this only difference would be if this had support for higher speeds which I doubt
Edit
Unless im mistaken Att is only using hspa 7.2 which the iphone has supported now if their using 14.4 then they really need to upgrade their backhall before renaming it 4g
Same as the 3G connection, not much different. Although my area in Raleigh, its good signal out here so I have no problems really.
What part of town are you on? I'm North Central by Blanco/1604 and I've gotten up to 3.08Mbps down and .38Mbps up1.83 down and 0.33 upload In San Antonio Texas. My iPhone 4 was faster and it didn't have so called 4G.
It's amazing how easily you people feed the trolls here. A guy with *1* post (meaning his first and only was this topic) asks a sarcastic question to demean the Atrix...and you all buy in and answer honestly.