There is now a link on the PW product page in paragraph called "We want you to know" that explains some of the "design decisions" made for the PW. Here's the link:
http://www.amazon.com/gp/feature.htm...d_i=B007OZNZQ0
This contains another link to pictures of the screen under different lighting conditions that actually show the cones of shadow:
http://www.amazon.com/gp/feature.htm...d_i=1000841011
I don't remember seeing these before. I apologize if this is old news.