So I finally found a solution in the face of blatantly misleading analysis carried out by Apple service people as well as the ones you mention at corporate HQ. I was an ardent fan of Apple and I would have sworn by Apple's integrity and and what I had believed was flawless design and manufacturing standards.
I am not going to waste my time on people who are in denial.
I gave up on the iPhone. Gave my iPhone 4 to my kid and I attempt to to sell the iPhone 4S with complete disclosure to anyone who buys that Apple has a manufacturing problem with the screen on the iPhone 4 and will do nothing about it.
Seriously, to claim that there is no issue is to throw mud in our eyes - and really that is what it is because the tint on the screen is what you'd see if you had just fallen face down in muddy water. The screen looks like a faded newspaper.
I went and bought the Samsung Galaxy - what a phone, and I think this is a better form factor and android has far more flexibility in app development. I a few minor software issues such as no task killer supplied but there are plenty of apps for that on their market.
So while I am keeping my Apple iPad - which has been a great product so far and my Macbook Pro - I have said bye bye to the iphone. When and if they improve the screen and come out with a different form factor, I will give it another look.
But, if anyone tells you there are no issues and faded, dull, yellowish screens are tolerable - trust me you will not like it. Go buy something else.
And I agree with ClaytonB that Apple will not fix this because this is a much bigger problem than the antenna issues which was covered up by giving away silicone cases.
As well, I agree that serial numbers don't matter. It is simply a manufacturing issue. Nothing to do with glue. By the time this thing makes it from China to here the glue would have long dried 🙂
Best wishes.
Salim