I have a small problem understanding why is this so important to have or not have .
I have the N900 for about a week now and i really can't find any real flaw in it at least in the way it's screen behaves .

In most modes and functions , the icons and captions are large enough to be pressed with just a finger or your thumb . However , in the browser for example , the 800x480 resolution gives a great experience when viewing a page in landscape mode and without zooming . In this case you can either zoom in and select something with a touch of your finger or you can use the stylus and just make your selection while viewing a larger amount of each page .

Making a device so radically different from any other mobile phone Nokia has made in the past few years and one that can really amaze most people with it's UI and performance is unfair to be judged solely by the screen's technology .