Hey all.
I have the EXACT, same problem.
I got my iphone 3g 8 gig on launch day and the screen is beautiful.
Too bad the ear speaker is dead. No amount of plugging and replugging in the headphones would fix it.
So I first spoke with the Apple store techs and they said they would replace it. But they were out of stock for days and had no idea when more would come in.
Rogers send me a replacement which I received in three days,
(Wow, Rogers good for once

)
The first thing that I noticed was the crappy washed out screen. The blacks are like a darkish gray, the colours paler. It's noticeable and irritating.
So the replacement one I ordered finally came in at the Apple store so I go to check it out to see if hopefully I get one with the first release screen type.
No, it's the crappy screen again. I showed it to the tech, manager, and even the head tech. No one there has no idea what to do, AND they all noticed the colour and depth difference. First they give me the run around telling me that I have to go home and try and update it with the older firmware.
Good, so go ahead and set it up. Better yet tell me where I can go and get this older itunes package so I can do it my self.
Nope, on both counts.
All their computers have been updated to the newer itunes and he can't find this older itunes dl he was talking about.
I told him that it has nothing to do with the firmware and it's a screen and\or gamma issue.
Is there anything to adjust the gamma at least? Contrast?
Well the manager finally told me that I just had to eat it or they could try and get another replacement phone ordered.
Look, I don't have the time or the gas to waste on playing around with this.
This is my first Apple product purchase and it's not going well.
Sorry for ranting a bit but I just had to get this off my chest.
Man, I thought I was the only one.
This is unacceptable. Why do I have to settle for an inferior screen?
Is there anyone representing Apple that has any more info on this?