Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Lets see where majority of the issues are coming from.

1. Have their been reports of screen issue already (before the iPhone is officially released)?

2. GB has nothing to do with screen problems. Apple doesn't use different screens for every model (they use the same screen for all models)
 
My iPhone 16gb has the yellow tiny all along the right side.
You can't notice it unless you are against a white/light background, though.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.