Perhaps, I don't remember. However, those manufacturers who released readers with Pearl screens certainly pointed out the benefits of them. Seems rather odd that Amazon has not done that, at least not yet. The only thing they have mentioned is that it is more reflective.

EDIT: here is what the ad states:

"Whiter Screen, Darker Text

IMPROVED—Enjoy even better contrast on the latest Kindle Paperwhite. Whites are whiter and blacks are blacker, creating sharp, clear text. The high-resolution display allows for elegant typeface options including Baskerville and Palatino, and all fonts on Kindle Paperwhite have been hand-tuned at the pixel level for maximum readability and comfort."

That is the same basic statement they used with the original PW.