Ah okay. Gotcha. But that would have taken more time. And Apple was trying to get that thing out the door. Otherwise clearly it would have had 3G on it to begin with. I don't think it was a marketing plan to gimp the first phone and listen to people complain about slow data. I think it was more of a case of they were in a hurry and just wanted to get it done. Also, the app store didn't even exist at the time. So the need for 3G was not as great.
I sorta think it was part of the plan, why not release a device on eedge when you know you can get new buyers with a 3g version a year later, and have those people on slow ass edge upgrade. If Apple was worried about people complaining, im sure they would've dropped ATT years ago.